I've been searching through the forums the past couple days. Is there a general guide line for when oversized valves should be installed? This winter, while the car is off the road anyway, I'm doing a couple upgrades. I just placed an order for stage 2 cams and springs from RPW. I can't seem...

i have the sds stage 1 tuned with an e-manage. i was curious if it was possible to run stage 2 (9lbs i think) with out having an intercooler or meth/water cooler. any one try it or know for sure? it'd be nice to spend under $100 and gain quite a few hp! thanks

What kind of psi does the stage 2 pully make? I FINALLY put in my gauges after installing my stage 1 and noticed that I am peaking at 9 lbs. Should I fear any potential problems at 9 psi without meth? Im ordering it next week anyways, but until then should I baby it? Thanks in advance for any info.