I've never used a forum before so sorry if I miss anything but here's my problem.....I have a 98 gt with CIA, trick flow throttle body and plenum, magnaflow exhaust and lowering springs.....I recently decided to put some BBK headers on myself and had to tear a lot out to get to bolts so went ahead and put on steeda underdrive pulleys, removed ac unit because it never worked and added ac delete pulley and also got egr delete kit even though I know people have many opinions of that. Anyways I've checked for vacuum leaks,unhooked sensors, IAC, Crankshaft senseor. But seems all is okay but th car won't stay running. It fires right up, runs for 10 seconds and seems as soon as it gets oil pressure gage to go up the motor falls flat and dies??? It stays running if I hit the gas but you can feel the missing almost until I get it to higher rpms then soon as I leg off gas it does ... Car ran perfect before .... Waiting on a code reader but until then any advice would help