I recently bought a 96 Mustang gt 5 speed mostly stock except for Pypes x-pipe and a Bbk cai,Bassani mufflers,and Msd coils,Sct 93 octane tune,I'm getting ready to put on Bbk shorty headers,Bbk78mm throttle Body Plenum. My question is i'm wanting to do the heads but not mess with cutting on the pistons should I go with 01 4.6 heads or have mine rebuilt with better components my budget is 2,200. Your feed back would be greatly appreciated. Thank you