Well, I was thinking huge cubes and race parts when I was putting things together, but to tell you the truth, I'm very happy where I'm at now.
Take a peek at this video - the sand starts after about a minute, but its very steep and loose sand. I'm running 4.11 gears and cut 37" boggers (which EAT horsepower) - I go up the hill for the first time in low range 3rd and then the second time I grab 4th (3.81) and scream up as fast as I wanted to.
http://youtu.be/eNXBrwUFjro
This is just a roller 351W, van cam with Explorer heads and Mustang injection. I can burn the tires off it at ease and hi-range is a blast, I just need more shock valving to play at speed, my oil pan has a few bangs and bruises.
I've got another motor I built for my street Bronco and after the performance of this engine, I'm probably going to be scared of my other engine. That is a 351W, TFS 185's, big ass cam 555/565 lift with Lightning intakes, Mustang injection, big Hooker headers - shooting for around 450TQ. That should lift the front tires off the ground - I'm hoping to make power to around 6500.
My trail truck motor with 35's or 4.56's would be insane - right now I've got zero power issues, just axle wrap and not enough shocks... I'm just giving you food for thought -