Get a Dodge Cummins 6 turbodeisel then go
www.bullydog.com. The Ford 7.3 are pretty good too. I like the Dodge 4-wheel drive tranny combo better though I've had trouble with the Ford auto trans . Not much experience with the Chevy. I'm building a stroked 460/514 84 F-150swb Ford 3200rpm stall auto 4wd. I think its a great idea if you can afford it, I too love driving a big bad truck. I always wanted to build a Simon and Simon Dodge Power Wagon 440 clone too,that would be way cool.