Ford Mustang Forum banner

closed loop open loop

  1. 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...