Holley carburetors bksa27 shows enthusiasts and home mechanics how to trouble shoot, disassemble, clean and inspect, reassemble, and tune all popular holley carburetors. I have always thought that the low speed jets were too rich, and i have to set the idle screws at 14 turn out to get it lean enough at idle. As such, it is lean jetted for use on a stock vehicle, and it uses the closetolerance 122602 size 60 jets on the primary side with 83 jets on the secondary. Modern tuning techniques for holley carburetors rod. The ultimate edelbrock carburetor tuning guide duration. Holley carburetors powered every monster energy nascar cup team and nearly every nhra prostock champion for four decades.
My very mild poncho 455 makes 435 rwhp and 495 rwtq with an 840 cfm qjet same power as my holley 850 dp but gets 34 mpg better than the holley. Holley performance products has written this instruction sheet for the installation of the 080555c model 4175 universal spreadbore replacement carburetor. The holley carburetor is an icon in the performance industry. Carburetor parts and components holley performance products. Holley carburetor tuning guide 4150 carbs part 1 duration. Holley 600 tuned to suit published by kyteler on sun, 10082003 20. Externally adjustable floats, standard accelerator pump nozzles, standard. Ideal for trackside tuning, this kit provides a quick and easy way to accomplish your carburetor tuning with the correct parts.
Carburettor 465 holley v 500 barry grant question 202 red. You will need to know the basics about how to work on your holley, and a book or two will really help a bunch, because of the pictures and part numbers in them. Its a valuable source of knowledge for those of us who need it. In addition, the parts case allows you to keep parts organized and readily at hand. The complete practical guide to choosing and specifying holley carburettors for any suitable engine and for road or track performance. How to adjust tune holley carb carburetor tutorial instructions comvholley510. Holley 018481 465 cfm classic holley carburetor replaced by 0. With idle set to 750 or so i am pulling about 14 of vacuum and my mixture screws are out only 12 turn. Holley carburetor tuningcalibration kits contain a selection of main jets, pump nozzles, and power valves in popular sizes, all contained in a handy and durable compartmentalized plastic case. The elevated rpms should allow us to maintain a 14. This really is the only sure way of knowing that your holley carburetor will be brought back to original specifications and like new condition. In david vizards how to super tune and modify holley carburetors, best selling author vizard explains the science, the function, and most important, the tuning expertise required to get your holley carburetor to perform its best for your performance application, whether its street, strip, supercharging, or race applications.
I found 7276 combo works best on a stock l78 or 302 with manifolds and correct exhaust. Clear stepbystep illustrations and tips for performance, racing, economy, improved reliability, and even custom finishes for a showwinning appearance. The design of the holley spreadbore replacement leaves out many of the good features holleys are famous for, and leaves off most of the good features of rochester quadra jets. Holley carburetors paperback july 24, 1999 by dave emanuel author 4. I highly recommend original holley rebuild kits, gaskets, and power valves. I now have a few of these holley 4010 carburetors and i want to get the one on my 85 working better.
Thank you holley for the informative video i had no problem finding the numbers so i could. Classic holley carbs have been a staple for rodders around the world for decades. You take the engine cubic inch and multiply by the maximum rpm and divide by 3456. These kits can be used to convert holley carburetors which originally came equipped with manuallyoperated choke or automaticelectric operated choke. David vizards how to super tune and modify holley carburetors. This instruction sheet contains all the information needed to install these carburetors. I have just gone to an edelbrock intake and brand new holley 1848, 465 cfm carb on my stock 260 motor. Holley 4010 tuning i now have a few of these holley 4010 carburetors and i want to get the one on my 85 working better. Hi guys its time to bite the bullet and throw the triple su carbs to the scrap heap i have had enough of the constant ongoing problems with them that has resulted in the car being garaged constantly undriveable and i dont have the 100s of spare hours to get them to run properly only for them to drop out of tune the. I ran a really obscure 08007 390 cfm 4 barrel on a 4 cylinder pinto.
Everything you ever wanted to know about holley carburetors is included in this 2hour dvd. Ideal for trackside tuning, these kits provide a quick and easy. The vacuum secondaries can be wired closed if not required. Uniquely, this book allows the identification of complete secondhand carburettors and individual components, including all metering blocks, so you can buy and build with confidence. Discussion in the hokey ass message board started by psychobilly boi, jan 28, 2007. Now, holley efi is dominating the performance world as well as our products for gms ls engine. Holley carburetor tuning guide 4150 carbs part 1 youtube. My car has a holley 4165 from many years back its been in storage for 20 years. This 1976 vk valiant charger 770 is in sparkling whie pearl with original 265cui hemi six and 3 speed auto.
The quadrajet off a blue 253 is also a fantastic choice. How to adjust the idle mixture screws on holley carburetors. Order a cartech how to super tune and modify holley carburetors book from cj pony parts today. Holley part 5 choosing the right carburetor using the volumetric efficiency formula duration. Bg, or barry grant, also makes parts for holleys, and offers them at a fraction of the holley price. Jan 10, 2011 off idle just above idle at very light throttle positions, the transfer slot now provides the fuel. Its simple design and near infinite adjustability have long made it a favorite among enthusiasts. Jul 11, 2010 what happens if you seafoam your diesel. Carburetors slayer series holley performance products. Thirty, forty, even fifty years ago, if you looked under the hood of any modified or performance car, you more than likely would discover a holley carburetor lurking there. Holleys packaging acts as a parts tray so you can keep all your parts organized.
Holley s model 4160 four barrel carburetors provide maximum performance on street and mild race vehicles. Holley carburetor rebuild kit 4160 series 4v cj pony parts. Holley s 018481 is calibrated and intended for small v8s. Holley carburettor 4 bbl 465 vacuum secondary hot air choke classic holley carbs have been a staple for rodders around the world for decades. Often, many enthusiasts first modification is swapping out the factory induction system for a new holley 4barrel carb and intake manifold. Oct, 2014 carburettor 465 holley v 500 barry grant question 202 red posted in engine. Carburetor technical support holley performance products. Id pass on the holley and focus on tuning your qjet. When buying tuning parts for your holley you have two choices.
Pit stop usa offers holley 4150 series double pumper tuning kit 36182 at low everyday prices. While efi tuners routinely use this new technology with great success, surprisingly few carb owners have warmed up to the idea yet. Hot rod magazine speed parts hall of fame and the holley 3310 carb was selected as one of. How to adjust tune holley carb carburetor tutorial instructions duration. Holley carburetors have powered every nascar sprint cup team and nearly every nhra prostock champion for four decades. Stepbystep instructions are included along with a detailed tuning guide. If it is only a slightly hot engine the 465 can be jetted to suit no problem as the primaries are basically just a 350 holley.
Purchase a holley renew kit next time a carburetor rebuild is due and you will be assured of using only genuine holley factory service parts. How to super tune and modify holley carburetors david. The holley 62103 is an emissionslegal replacement for the qjet. If you have an automatic transmission you will need a vacuum sec. Engines with very large cams may require a slightly richer. Jan 28, 2007 holley 94 tuning advice and power valve help discussion in the hokey ass message board started by psychobilly boi, jan 28, 2007. Modern tuning techniques for holley carburetors dragzine. In 2008, holley filed for bankruptcy and emerged from it in 2010. Jul 11, 2010 holley part 5 choosing the right carburetor using the volumetric efficiency formula duration. Proper idle mixture adjustments can prevent bogging. The holley spreadbore lacks the following features, which are standard on its squarebores. Carburetor essential tuning and setup tips fourbarrel. Be sure to check out all of our products from holley performance products including holley performance products small parts and tuning kits. Carburetors, nitrous oxide, ignition systems, and much more.
Holley carburetor rebuild kit 4160 series 4v is rated 4. Whether youre a carb rookie or an experienced enthusiast, you can tune, repair, and select the proper. Part 1 of 2 a lot of videos are long and provide too much information or are cut short on holley carbs. At about 2500 rpm, when the throttle is opened there is a pronounced flat spot until finally the rpms climb.
Idle feed restrictions and idle air bleeds are used to tune this circuit. This tuning kit contains a selection of main jets, pump nozzles and power valves, in popular sizes, all contained in a handy and durable, compartmentalized plastic case. Have not looked at or bought any of the others though. Reassembled carb, set timing to 10deg btdc, and hooked up pcv to port on the new 1 spacer block. Edelbrock avs carters are more expensive than a holley but are very close to qjets and are quite tuneable if you know how. How to adjust tune holley carb carburetor tutorial instructions. Hi, looking for some tuning thoughts and recommendations. Over the past 50 years, the venerable holley carburetor hasnt changed much. Plus, it is gold dichromate coated for durability and classic holley looks.
Linkage kit 45 465 is required when converting a 04412 to an electric choke with the 45224 electric choke conversion kit. Ideal for trackside tuning, these kits provide a quick and easy way to accomplish your. One thing you can do to save money when buying holley rebuild kits is to buy a kit from a similar carb in the holley line. They will not get the economy of a qjet and thats the main reason to run a spread bore carb. In 2008, holley filed for bankruptcy and emerged from it. Carburettor 465 holley v 500 barry grant question 202 red posted in engine. I have gotten the motor running but the car stalls when i adjust the idle speed screw. Dont trust your performance to just anyone, holley is the only modular. So i have checked the static timing on it and made sure the balancer hasnt. Includes 3d virtual tours, exploded views of actual carburetors, step. Now, holley efi products power these cars and are dominating the performance world. Linkage kit 45465 is required when converting a 04412 to an electric choke with the 45224 electric choke conversion kit. To get the car up to current fuels and due to sitting so long i ordered a rebuild kit, disassembled the carb, cleaned it well then rebuilt it replaced accelerator pump with the same as was in the carb.
Theyre calibrated for use on stock to mildly modified vehicles and have that classic holley look. Holley carburetor tuningcalibration kits 36182 free. Holley necessarily shifted its focus to aftermarket performance, but that was tough, too, as enthusiasts embraced fuel injection. A guide to how a holley carb works and how to tune it. Holleys 018481 is calibrated and intended for small v8s. Ive run the 4165 and 4011 and did not care for either. Tips on adjusting the idle mixture on holley carburetors, using a simple vacuum gauge. The carb is smaller than a qjet, being only 650 cfm. Holley 94 tuning advice and power valve help the h. They contain valuable information that can save you time and. Obviously, holley offers original parts at the holley price. Plus, being a dvd means it is interactive so you can easily find the chapters you need without watching the. Cartech book how to super tune and modify holley carburetors.
My dad and i installed a holley 4010 on his 83 capri back in the late 80s and that was the first carburetor i ever worked on. If you know enough to be dangerous when tuning your carb, but not enough to get it right, you need to read this. Written by david vizard, this book provides easily applicable information, that will help your carburetor reach its peak performance in your classic mustang. Shop for holley carburetor fast kit for holley 4150 with confidence at autozone. Holley has been the undisputed leader in fuel systems for over 100 years. Its guided me on most of my rebuilds w good results. Everything you ever wanted to know about holley carburetors is included in this twohour dvd. Though, it is highly unlikely to cause much of an issue as they will barely open if the engine isnt all that worked over. Whether youre a carb rookie or an experienced enthusiast, you can tune, repair, and select the proper carb for your vehicle. Discussion in the hokey ass message board started by 48tom, oct 3, 2011. Hi guys its time to bite the bullet and throw the triple su carbs to the scrap heap i have had enough of the constant ongoing problems with them that has resulted in the car being garaged constantly undriveable and i dont have the 100s of spare hours to get them to run properly only for them.