I have the same problem. I just bought the car. '95 firebird Formula with rebuilt engine and mild cam. Rebuilt t56 with new clutch. I'm assuming the clutch is aftermarket heavy duty. When the car is hot, it's a pain to get it into reverse or 1st gear. I just ordered an adjustable master cylinder from Hawk 3rd gen. I hope this fixes the problem. I'll let you know when I get it installed. Hopefully by the end of the week.