Scorch

Wasn't quite sure which forum to ask this in to get the best response but figured i'd try here. Alright swapping in 5.3 S2 Heads and a TR224 cam by the end of february.. gonna change out the plugs during all this along with a bunch of other crap (manifold, pulley, tb, oil pump, timing chain, ect..) i was wondering which NGKs to go with taking into consideration that in late May I will be adding a 100 shot of the giggle gas. And what should i gap them at. (im assuming i change the gap when i get the nitrous. i appologize that my spark plug knowledge is limited to zilch at best).