i love crawlin'.......my dad and I go up to Tellico, NC and ride the trails up there. there is a thread over on pirate4x4.com that talks about the hardest trails in the country. if you are serious about rockcrawlin you need to check it out.
I have a 72 EB with a 302 and my dad has a 77 EB 302 and we go play with ECBR on the trails up there.
I like Guardrail, esp when it is wet and Helicopter Pad is fun to watch.