I cant help you with the insatallation,but the 500 Caddy is a very good engine. I picked up a 1965 Chevy shortbed with a 500 Caddy,and Turbo 400 tranny in a trade.It is one great running truck,its a real pleasure to drive. It wont run with the big block Chevies in the 1/4 mile,as it is more of a cruising engine.

http://www.dalesclassics.zoomshare.com/0.html