Hey fellas, I got a 65 Longbed with a 327 4 speed. I got it from my bro for my graduation present. Its pretty unique, 2wd with a lift

. Anyways, aside from the previous owners shotty craftsmenship I think I've got alot to work with.
I'm wanting to put mid 70s-80s axles under it with 4:11 gears, probably a little bit lower, Married transfer case. 6 inch lift or higher, and run with 38s.
Engine wise, I'm planning on building a 377, with hopefully 425hp at 5 grand or so. Really haven't thought this part out yet, I'll probably throw in this 305 I got here at the shop as a mule motor.
Any of you guys got any gearing ratios yall think are good, axles to look out for?
I'm more of a hot rodder than a mudder. Well, I haven't went mudding in any chevys yet, I drive my buddies 78' Bronco on 36s, while he drives his Samurai on 38s