AFR Valve Spring ???

You should get away with it, the ramp rate on the cam is not to aggressive. It will waer the stock AFR springs out quicker then a good spring.

If you want a spring upgrade, Ed Curtis has them on the shelf along with upgraded seals if you want them, around $200 for both.

The springs that come with the AFR's are junk. I just floated all of my exhaust valves in my 185's with an F Cam which only has a little over 500 lift. Even though I held the nitrous a little longer than usual I only spun the motor 6100 rpm. Do yourself a favor and put in better springs or drive that car easy.