I just rebuilt my carburetor for my ford 302 and found out it was a 750 com which I know is definitely too big for my car. this was put on from the old owners who used to race it, I know the engine has had work done to it but im not sure what all was done. It definitely has a bigger cam in it and I know it has high compression, I have to run very high octane gas. The carb has 75 main jets and 82 secondary jets, also the primary air bleeds go 70 31 31 70 and the secondary air bleeds are 39 31 31 39. I have not tuned the air bleeds and I did change the main jet earlier to get it to idle better since the carb has so much more air flow and lower air speed then my car needs, the original owner had the jets even richer. any other jetting advice would be greatly appreciated as I plan to jet tune once I get the carb on. It also has a 65 power valve in it, not sure if I should lower that given that my cam effects my overall vacuum so im not sure if I can reach the 19-20 vacuum at idle.
Ive begun setting up my carb for install, however I was wondering if anyone knows what this Allen key screw pictured is for.
I also have set my primaries so a small square is visible of the transfer slot, however, the spring that my accelerator pump cam sits in front of prevents my throttle from closing all the way so the amount of transfer slot exposed is more then I would like right now. Any advice on how to fix this? I also adjusted the Allen key for my secondaries to expose some of the secondary transfer slot so I can do more fine tuning on idle speed with that, since I was having an issue where my primary transfer slots were too exposed making my idle mixture screws non functioning.
If any one has anymore advice on things to do before I go bolting her back down and tuning, please post here. Also if there is any advice for when I begin tuning, im all ears.