RobsRR
Well-Known Member
My 383 will run great until it gets hot idling. Say 190 to 200 degree's that is with ac on. Then runs erratic, afr goes way rich and will stall. Holley 3310 with phenolic spacer and fuel line wrapped from pump forward. Not sure if it is fuel or spark problem. I don't have a return line? Any help welcome. 10.5 compression non ethanol fuel only.