Okay so I've recently put a PowerAid throttler body spacer on my truck and a Volant cold air intake. Next I'm looking at a Diablo Trinity tune and a aftermarket cam shaft. I'm waiting to around Christmas to get the tuner but I was wondering if I put the cam on my truck before I got the tuner how would it run? Would the current computer fubar it up? Also the Trinity could go in and over ride my RPM limiter or O2 sensor's? If not what programer would be best for by passing current limits on my truck? Any brands of cams I should go with?