Quote Originally Posted by 01GTP View Post
depends on the car, I hit 8-9 with my cam in 20* weather.
That's with a cam so the car flows much better so it won't see as much pressure but still make a hell of a lot more power off the pressure it does see.

I'm on a 3.4" with stock cam and see around 9 to 10 with the occasional 11psi at redline.