And by the time you upgrade the fuel system, rear, trans/clutch, suspension, get the supercharger and put it on, get it tuned, and everything else to make it reliably handle that power you will make with a built shortblock and a s/c you will be welllllllllll past the price of just buying an 03-04 cobra and putting on a KB with supporting mods and not to mention your car won't look like a regular old GT with a different hood and some black decals on it lol.
really no differece if you factor in the cars themselfs. Both need plenty of mods to run fast times