Heads (cams, springs valves, ect), intake manifold, throttle body, sprockets, timing chains, timing chain covers, computer, wiring harness, MAF, 24 lb injectors, and it goes on. And even if he does do all that, the GT short block will have lower compression, so he still won't make as much power a stock Cobra motor.
It would be a lot cheaper and easier to either one, buy a Cobra engine (http://www.seanhylandmotorsport.com is a good place to look) or to add a blower and do some work to his existing engine.
|