I have had a TE34 turbo on the car for almost 10 years. 4 years ago I added a PTE center housing. The car runs fine BUT... the need for speed is always there so I am considering going to a PTE51. I have a Precision 9" 3000 stall convertor and blue top injectors. My question is: How much do you think I'd gain et wise, with this change? I don't want to change turbos unless there is a good gain and the car's drivability doesn't suffer. Any thoughts would be apperciated! Thanks, Paul Vilser