you want to make an 8 sec car? and start with a 5.0? your going to have ALOOOOOOOOT of work todo just to get that motor to swap into the sc and run correctly. and then chances are all the stuff that makes it a "super" oupe will be lost and you might as well just use a v8 Tbird to start with. No offense but why choose fords turdest of an engine to build? why not get another v6 sc or a 4.6 or a 32v 4.6..? but a 5.0? ok, the parts are cheap but you need todo sooooooo much to make that motor decent and even then that money put into a 3.8 sc or 4.6 2v or 4v would net you sooooo much better power gains..
just my 2 cents..
and i had a built 5.0 mn12, THEY SUCK ! full gt40 intake sytem,bigger mafs and injectors,built trans,ignition,exhaust..maby other stuff..was maby MABY a low 15 second car....lol