Fuel & Air Systems

  1. PICKING THE RIGHT CARBURETOR SIZE FOR YOUR MOTOR

    Check this video out about how to choose a carburetor for your motor from BAD ASS Racing. Great article that goes into detail about choosing proper size of carb for your engine combination. Choosing the right size carburetor is key for getting the performance you're looking for out of your engine. So many choices! 500, 600, 650, 750, 850, dual 4s, Dominators, and more!So what are the things you need to know in order to choose the right size carb for your engine? Well, I'd literally have to...
  2. How to Rebuild Holley Red/Blue Fuel Pump

    Pulled a Holley electric red pump off the shelf to put back in action, thing is it's been sitting for 12yrs... so it's going to need a go through... here we go. 1st flip it and remove the bottom plate screws and plate. Pull the old gasket off to expose the round rotor plate, brass filter screen and regulator Pull the old filter out, flip the rotor cap off to expose the rotor vain. Next remove the rotor. Now... if yours is as old as mine...you won't have to worry about the steel vein plates...
  3. How to set up a Holley 4 bbl for a Mopar

    Ok there have been a few posts asking about this lately. If you don't use the proper bracket for the Mopar, and just the universal one that comes on the carb, you may not be able to get the secondaries fully open...First you need to get the holley throttle bracket for the Mopars, Holley part # 20-7.Holley 20-7 Carburetor Throttle Lever Extension - Holley Performance ProductsHere are some links to it at Summit Racing and Mancini Racing:[URL="https://www.summitracing.com/parts/hly-20-7"]Holley Throttle Lever Extensions 20-7[/URL]...
  4. How to Modify Holley Regulator to Full Bypass

    Here I'm going to show you how to modify a standard "dead head" Holley reg to a full bypass type.Here is the stock regulator in pieces, you can see how small the stock feed hole is and why these things are capped to around 450HP. Here is the retainer, spring and ball valve. The part on the far right is the seat for the ball and this can easily be removed from the housing with a small drift or a bolt used as a drift (punch). Remove them and throw them away. Here is the standard diaphragm....
  5. Thermoquad Teardown and Reassembly How To

    This will be a sticky and be locked when done. Please begin another thread for comments. Thanks.I am building this 850 Thermoquad for Jeremy (JMacMopars) for his 318. This is a step by step how to on teardown and reassembly.First, begin by turning the carburetor upside down and soaking the body screws through the back side on the under side of the base plate with P'Blaster. The screws are steel and the base plate is aluminum. They have a nasty habit of corroding.I want to thank my...
  6. Holley How To

    Since our friend NightMoves was burglarized, I offered to send him a carburetor. So, I thought what better time to to do this than now? I am going to build him up a nice little 1850-2 Holley 600. This is how "I" build them. I am not looking for discussion or argument. Just trying to show how to do a simple rebuild. Enjoy. Remember, before you put it in the cleaner, remove ALL of the gasket material that you can. It will turn into a goopy mess if you do not. As soon as I get a kit, I will...
  7. Carburetor FAQ

    There always seems to be a lot of questions relating to carburetion, especially questions such as which carburetor to use or how much cfm the engine should have. The problem with answering these questions is that the answers vary with engine size and tuning rpm. A related problem is that all carburetor manufacturers don't use the same rating system for their carburetors, and some don't rate their carburetors' "cfm" at all. Cfm stands for cubic feet per minute, which is used for rating the...
Loading...
  1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.