I have a question for you don. When you put that 91 in, did you go straight to the track?? Because if you put in it then maybe your car didnt even have time to adjust for it. I would say use 91 for a while and drive around with it and let the pcm adjust for it. Then do a scanand see if anything is changed. Also get a heatsheild on that filter, i know that hot air is probably cuasing atleast a degree of KR. As for running that warm, are you sure it is a 180 degree t-stat?? With my stock in i barely ran that warm, with the 180 in the highest i have ever seen was 200 and that was sitting in line at the track waiting for a longggg time.
1995 Pontiac Bonneville SLE (the black one)
Old NA Setup with ER Rockers
PB 15.132@ 92.942 PB 60' 2.269 PB 1/8th 9.7000
1995 Pontiac Bonneville SE (the white one)
Up and Running (Thank you Bill for all your help)
GT1 cam, 105 springs, ect, Ported LIM, Powerlog V2, CAI, Waterpump underdrive pulley, A/C Delete, cooling mods, yea the works
In Modding heaven with ZZPerformance