ckessel
Well-Known Member
Whose kit did you use? Was it from Holley or the local parts store? A word of advice. Don't use parts store kits for a Holley. Use only Holley or one from one of the carb specialty companies like Quik Fuel etc. The main bodies on the carbs can warp over time which will cause lots of grief like what you have now. If its warped its a simple fix. Also using the List number from the carb, which is on the airhorn and says "LIST" then a number like 1850/6619/4575/4781 etc with maybe a -1/2/3 etc after it. That is the Holley number you need to have to get replacement items for it. With that number, you can find through the company tech info/line what jets it came with when new. I'm guessing anywhere from a 61 to maybe a 66. That will give you a baseline to start with if you put it back to what it came with. From there once its running and you've eliminated the vacuum leaks, you can change jetting etc till its right for your car.