Hey guys. First i would like to say thanks to anyone who takes the time to help me. It is appreciated!

On to the questions. I just purchased an 04 evo and I am looking to do some basic mods. It all ready has: magnaflow exhaust(turbo back), aem intake, blitz blow-off valve, and a vishnu chip. I was looking to add a boost controller and a set of HKS cams. Im not sure how much the cams will do but thats what im hoping you will help me out with! Also, I have a nitrous kit laying around, and was wondering if that is a common mod or if I should just leave it off? also, I see that everyone is saying the boost limits on 91 octane is about 23lbs. I am planing on tuning with 105 octane racing gas, and was wondering what the limits would be with that octane? Im not looking to push it to holly hell, but i would like to get a little more scoot out of it. and lastly, what would i need to do to be able to VTA from my BOV?

I did some searching before I posted this topic, and found alot of answers. But I narrowed it down to the ones i couldnt find, and am asking for your help.

Again, thanks in advance!