Tommy's motor runs but smokes real bad on throttle. The only good thing is you will never get west nile virus riding in his bronco. If you're spending all that money on a 400, why not spend it on a 351 or 460? The whole point of suggesting a different motor is so he can use factory EFI. It doesn't need a bunch of power anyways, it just needs to sound good. Big cam with lots of lobe separation, that way every redneck at alto asks if it's got a cam in it.