Ok me and my buddy build up a 347 stroker with KB pistons, H beam rods, and GT40 Heads, we also put a X303 cam w/o doing much research we were told to use that cam by what we though to be a wise souce but now the car is running but it wont idle...The car started right up and runs fine if the throttle is cracked. But as soon as you let off it slowly dies down and just quits like it has too much cam. Has anyone had problems with that cam? Im new to all this ive worked on imports so your guys are gonna have to bear with me. Let me know if you guys konw anything about that cam, and the driveablity of it.

Thanks for the help

VIc

 

what is your intake combo..injection or carb..and what year...im guessing it is a speed density car ,,if so you need to change to mass air

 

the sd thing is not so true, is your tps set right and did u mess with the idle screw on the tb?