I'm late to the party, but I have a 1980 Minnie Winnie 20RG on a 1979 CB300 chassis with a 360/727. I've never checked, but what is the average fuel economy on one of these? I am about to take my maiden voyage after several years of slowly updating it and getting it ready for the road. Here's what I have done:
New 215/85R16 tires on 1987 D350 16" coined wheels, balanced with BBs
New LED clearance lights to replace the disintegrating factory ones
New belts, hoses, fluids
Installing a 2500w PSW inverter, replacing the power station with a modern one that has 3-stage charging, and replacing the fridge here in the next 2 weeks (waiting for everything to arrive)
Replacing the fabric throughout the coach in June, since the original is very dry rotted and brittle (rips too easily)
replacing the single group 27 house battery with a pair of group 31s.
Installing a CURT 19100 3500# capacity hitch
replacing all the cabinet Shurlatches, since the originals disintegrate in my hands when opening cabinets
Replacing one roof vent cover
Re-caulking every seam
Installing a radio, tv, mount, blu-ray, etc for modern amenities.
I have most of the stuff either in-transit or already here, and have been installing on the weekends (covenants prevent the RV from being in the driveway all week, so I have to store it off-site).
