I know a fair bit about nitrous (but I've only played with it one on a mustang). I was thinking maybe a dry 75 sprayed before the MAF. Or a wet 75 after the MAF sprayed above 3000rpm. I was going to go with 1 degree colder plug for the 75. I think anything over a 100 and my buddy is gonna piss his pants. I was also thinking bout doing a window switch to turn on at 3000 and off at 5500.
2000 GMC 4.3L 2wd Auto Reg Stepside
Performance: Volant Cold Air, Flowmaster Duals, Powerraid Throttle Body Spacer, Derale 18" Electric Fan, 180* T-stat, Underdrive pulley coming soon
Exterior: 3" Body Lift, 31" tires
Interior: Full painted interior (and I mean EVERYTHING except the cloth)