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my 4.0 made 348 hp and 365 at the wheels on a stock motor just a bolt on or two even ran a 12.82 last year with 3.55 gears got 4.10 in the car now so we see how much better it willl be
Ya sure....if you call a supercharger and or NOS or a Turbo a bolt on. I can assure you it was not a N/A car as those numbers are about 100 each too high. Sheeesh.