a good estimate is 7-10whp/lb of boost. some turbo's make more and upwards of 15+/lb, but you usually won't see that on stock blocked street setups. b16 are 160whp at the crank w/ 15% drivetrain loss you can figure in the range of 135-140whp stock. with a conservative estimate of 10whp/lb and at 8psi you can figure about 80whp over stock so around 220whp give or take 10-20whp.