Well, ive got this 351w here... and well as much respect i have for some of them, i dont like mine. Ive put about $3500 in the top end alone, and it still isnt that fast. Im sick of dumping money into this small block and not feeling any difference . I have my mind set on putting in a 427-428. I would think about a 460, but arent there clearence issues? I want the ability to have 500+ hp with mostly bolt-ons. Either that or im sellin the mustang and gettin a road runner ::. Sorry, had to vent.