any other mods required to install? valve springs, pistons, etc? Also, when you say KB custom grind, meaning specifically designed for use with a KB blower?
I have upgraded springs on my car,are they are requirement I'm not sure but I would assume so and yes,these were designed to be used with a kenne bell.I used them NA also tho.
No matter what these are deff going to benefit over a stock Cams without a doubt and they are a blower cam to which is good so ur not just dumping boost.I wish I could tell you exactly how they would perform I just don't know but I couldn't see how you wouldn't make gains from these.