I used to own a Revcon Prince that had the Front wheel drive like the GMC motor homes. It was 32' long and had the axles in the back like the GMC. With the 454 and headers and Crower cam and Edelbroc manifold it would get 9-9.5 mpg with dash AC and doing 65-70. Made like an Airstream with fiberglass front and sides by the wheels. Special made and designed by the Grandson of the Airstream inventor. We lived in ours for months while our house was being rebuilt after a water line broke while on vacation. It was really nice.
Interesting.....What transaxle did it have? I've never seen a TH425 with a 90° Chevrolet bellhousing bolt pattern before......BOPC only.