Chevy 350 with throttle body fast idle

Question

Chevy 350 with throttle body fast idle

Answer 1

Check for the vacuum leaks but more than likely you will need to replace the IAC (Idle Air Controller).

Answer 2

look for air leak at throttle body intake gasket

Answer 3

to be more specific the throttle body, or what looks like a carb, the base gasket between the throttle body and the intake is leaking...