how much of a difference will i feel with these cams i already have a full header back dc exauhst system and a aem cold air intake with a throttle body spacer will i these cams make safe power up to 7600? thanks alot

 

You should buy the 403's if you arent planning on replacing your valve train. I dont know much about the 402's though.

 

helps if you have more info, like engine, future plans, etc

 

i dont want to go all out i might do a low psi turbo thats about it if i could get away with using 403s with stock valve train and give myself a redline of 7200 i will. i am donig this myself on my daily driver ls i have 40,000 on it and pefect compression on every cylinder if 402s will give me defenetly noticeably harder pulling power at mid and high rpms im all there

 

if i use 403s i wont turbo it thats just a thought i doubt ill get around to it.