Went to the track last nite and lo and behold I see another 89 TTA out there. He pulls up to the tree and proceed's to run a 14.4@94. Hmm go talk to the guy and he had just started trying to get it running right. Had head work, sounded like a cam, bigger turbo, dutt neck intercooler and 9 inch converter. He said he had the boost set at 20lbs but was only running 40psi??? Shouldn't he be running at least 55psi or so?? He said the car was sputtering and popping at 4200 or 4600 rpms. Lack of fuel pressure?? He did have an AFPR.