problems with my turbo coupe.. Expert advice needed..
hey fellas, I've got a bug/misfire in my mustang that has me stumped. To start from the top, its a 93 stock bottom end, edelbrock heads, tfs cam/tfs intake, b/g headers with a mpt70,c4,42lb injectors,pmas calibrated and all the good stuff. Car was fine, we dynoed it about a month ago and it made 491 with 10 lbs of boost but was leaning out due to no fuel system. Fast forward to recent, I installed an aeromotive pump with a filter before and after, dash8 feed with dash6 return, aeromotive rails/aeromotive fuel reg.. That night I didn't get to dyno and drove home. I noticed the car would misfire when sitting at a light and thought it was loading up or something. I didn't get on it until I got back on the dyno. Today we strap the car to the dyno, make a hit. Fuel pressure was fine/ air fuel was fine/ but the car still has an intermittent misfire and feels flat. Check the timing and its the same, set at 26 total.(c16 only).. To wrap this up the car wouldn't make over 350 to the wheels today.. I'm so bumed out because im pretty mechanically inclined.. I tried another a9l and it was the same. I can only think that I have a problem with my distributor or my air flow meter.. I'm sorry for the long post but I don't want to leave anything out.. thanks and please try to help!