I have been 128 mph with nitrous @3150lbs in 1/8. and went 140mph with my turbo set-up, turbo set-up had to have the trans set-up a little different to last (I think because it pulls so much harder in 2nd and 3rd) but I beleive I can go 145 mph when I turn the wick up a little more on the turbo and this is at 3300lbs with 28x10's. and Tranzact valvebody with clean nuetral is the only way to go.