as you can tell im stll a noob..... what is better using a v-tech bottom with p73 piston with ls stuff in it or putting the p73 piston in the ls bottom.....??? what is better for the swap b16a or p73 piston...???

 

well first its vtec vtech is a phone , second you want to use the right ecu so you dont use a button to activate vtec . its not safe or that effective bc you dont get the hp your cable of bc your fuel curve doesnt change youll run lean .

as for the rest of your question im not quite sure what your asking.
if you search lsvtec there are endless post on the topic and you find everything you need to know