unless the engine is "heavily" modded or on nitrious you are no where near 300+ hp. A friend of mine has about every bolt on available for a 94 300 zx n/a with cams and ecu tune by ztuner and he`s pushing 229 to the rear wheels.
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SHIFT_old school
399.5 hp 430 tq on 95k mile junkyard motor
12.0 @ 118.22 1.89 60`
DILLIGAF?