[PxTx]

Top end, meaning high MPH is a result of horsepower, not torque. I believe you are looking for and engine with low end grunt. Specifically and injected one, so I am thinking you must have a rock-climber that will frequently slosh the fuel bowl of a carburetor.

A 350 TPI engine will give you a good amount of torque (due to its long intake runner), but those motors are so sexy and desirable that their cost can be the most unattractive part.

I may be a little biased answering on this board, but I think it would be best to go with a big block for torque. If you have no religion in terms of mixing engine manufacturer with body type (and it sounds as if you don't) run an old Buick 455 or better yet a 472 or 500 Caddy!

A simple TBI injection will allow you to use a stock donor mill.

I hope someone here is willing to back me up. Can anyone else testify to these torque monster?