Hi All,
A friend of mine who has a 83 z-28 305 motor just told me that his carb is backfiring.He mentioned that his first carb failed,and he replaced it with a Edelbrock 650.I told him its sounds like his tiiming is off.Any other ideas to through at him?

Timeing and a lean mixture are 2 common causes for back fireing in the intake. Ide like you suggested check the timing then look for vacuum leaks. Any particular time the back fire occures?

he didnt tell me.i think its the carb he is using.he has the same year z-28 as mine(1983) and motor(305).he is trying to put a edelbrock carb on his car,and it wont work due to his dist is setup for a ccc carb.