thatclappedsilverado
OBS Enthusiast
So thanks to the help of yall, i got the cold start issue figured out. However, now that it starts im having an issue where partial throttle is fine driving it around but if i hammer on it from any rpm other than wide open and dumping the clutch it breaks up then clears out. Edelbrock 1406 carb and summit hei. i dont have a way to properly time it as of right now but i had a guy that used to build race cars at my work mess with it and he got it running alot better than i ever couldve by ear. But its still having an issue breaking up when first going to full throttle to make a pull. I have a fpr with the factory tbi pump so i can keep my fuel return but i have no way of knowing how much fuel pressure i have. fpr only goes to 9 psi and the carb calls for 4-5 so backed it out the whole way and ran it in the whole way and set it in the middle of the two figuring it was 4.5 psi. I know its like trying to figure out a code without a code scanner but its a shot in the dark. carb seems to be jetted okay for my application maybe a tad bit big but shoudlnt affect it that much right? Sorry for the long read any help is appreciated.