Have to have at least a forged piston, increase the ring gap vs. NA motor as well. I'm sure it could live happily with a 15-20hp shot. On a carb'd machine I'd probably want to do a wet kit, on EFI I'd look for a tuner that will control the nitrous and add extra fuel/reduce timing and run that with a dry kit. Personally I've never used it, bench racing only. I've considered it for my Rene, my tuner is already set up for it just need forged pistons.