How much hp/torque can a stock 5.0 automatic transmission take? What all would be recommend to help it perform better? It's in a 91 GT. Could it hold up to high twelves in the 1/4? What rear gears would you recommend being a daily driver w/highway mileage on a regular basis? I"m thinking about 3.73s. The car is stock (for now)
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1996 Mustang GTS