170 vs. 225

Good advice, I think...

(example only, no numbers crunching done) you can build 15 psi and make 300hp with a 8:1 motor and have to wait for boost as the motor is only making 150hp off boost or you can run a 10:1 motor and 7 psi to make the 300hp. you have gained off boost advantages.

just another way to slice the bread. all depends on what you want it to do and how you want to do it...