eric ,I just bought my 87 tr back from a guy I sold to 5 years ago. when I sold it to him I gave him 2 of my chips race/street you made for me. he put alky on the car which I will be removing . he gave me back 2 chips the street chip. the chip is marked: 5.6 2502 42# STREET 93 20*/15* 15-19 PSI I do not remember if I had put the t60 turbo on before you made the chips. I had a t44 on it shortly before I sold it to him. my present use of the car will be strictly as a pump gas driver. the current chip that's In it is 1 you made for shawn occoner order#6625 customer#575 classic 5.7 I would like to put in the afore mentioned street pump gas chip. i'm assuming I have to disarm the alky for it to work? I intend on selling the alky kit anyway. I had 2 strokes earlier this year which erased most of my memory about tuning. I will be using an otc 4000 I know its old school but that's what used therefor it will be easier for me to relearn. thanks chuck