my car is runing on standard chip and aparently has never been chiped only mods to engine are k&n, and full mongoose and its on 87k. how wise would it be to get 165 chip, cams and head ported and polished without a bottom end rebuild. i know idealy you would do the bottom end at the same time but cash come into it. or is this just asking for trouble? should i just save up for a full rebuild.