| Message | It is about a 18% difference from the crank(bhp-brake horsepower) to the rear wheels(rwhp) which should put you @340 rwhp if your car is right and you have no issues. There are alot of variables to consider...is your motor fresh and putting out the right compression?, no boost leaks, etc, etc. Ballpark between 300-350 rwhp. 
   ****472 RWHP/461 TORQUE ON 110 RACE GAS @21 PSI
 ****438 RWHP ON 93 OCTANE PUMP GAS/STOCK MOTOR****
 ****429 FT LBS/TQ*******************************
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