Originally Posted by stemyluv69
God i feel owner like a mofo.
So even with the more agressive cams, its useless to upgrade the valvetrain unless i want to rev to 9k- even though my car wont make power that high? lol
Spoon, the cams are awesome. I'll be on the dyno in early jan once i get my IM and TB on to see what power everythings making. Crossing my fingers for 190 with a good tune
The intake springs for the GSR should remain unchanged since they are actually stiffer than ITR valvesprings because the valve is lighter.
Good luck for 190. I am estimated probably 175-180 whp max with good tuning on your setup.