I recently installed another engine in my wifes 94 Gt . Its a 90 model stock short block with an E cam , 1.72's , 93 cobra intake and ported E7 heads . I am using the 93 style EGR on it as well . The car runs fine while driving except for an over heating issue but at idle it sometimes just starts rolling up and down real bad and will usually just die after about 3-5 seconds . I have messed with the MAF and its clocking , I have adjusted the idle , the tps is right and it doesn't have any vac leaks . Any ideas ? I have heard the 94-95 computers do not like cams . Any truth in that ? I have thought about drilling a small hole in the throttle blade because I know alot of the LS1 guys do that to get them to idle decent after a cam swap .