A am building a 401 AMC that will be putting out around 500hp. I'll be using it to hit the fairs at the truck pulls.

The truck is a 78 J 10 any ideas on beefing up the drivetrain? Without crawing under it yet anybody know what axles came under this truck? I looked but no tag on the dif.

If I ever figure out how to post a pic I'll put some up. It's very ugly...but that's the fun in it.