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  1. New Member Introductions
    Hi, I have a 1989 mustang gt, it had a dead cylinder. I checked for spark and it had it. had the injector flow tested and it was also perfect. The car is popping back up through the intake and making the butterfly pop in the throttle body. Does anyone think it could be a bent valve or stuck...
  2. 5.0L Tech
    This is a great forum - thanks to all of you who post questions and answers - I cannot tell you how many times I've used them. That being said, I have a problem that has me running in circles. 1993 5.0L, Edelbrock Heads, GT-40 Roller Rockers, GT-40 Upper and Lower Intake, Stock throttle body...
1-2 of 2 Results