I have a 88 Notch with heads,intake ,blower,,I had a chiped burned and brought it up to Power Train Dynamics and had it tuned,with 10psi it made 492 to the rear wheels,I beat the hell out of it reguarly with the stock 80000mile T5 in it ,,i recently changed it out for a Motorsport version for the closer 1st to 2nd ratio,got it from summit for like 1100 hundred,, jim