If you get the tune wrong, especially with nitrous, no main caps are going to help you. Aluminum caps help dampen vibrations and reduce/prevent fretting and windmilling. Magnesium would be even better, but then you'd have a corrosion issue in that environment. S/F....Ken M
Dang ,dude I hope that didn't hurt you or the car
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)