yes, and i would bet if its PORTED the crank is already welded, do you know how big of a shot the nos is set for? dont go over 30 horse. also retard the timing a tad like mentioned before might also wana turn the timing down a bit. and maybe go up a jet size or 2 justy to make sure it wont lean out. good luck
hey its only money right, never know till ya try