I have a vintage GMC motorhome with a 455 cubic inch V8. Modern fuels do it no favors, had to replace the fuel lines, refurbish the gas tanks and finally went to a FITech aftermarket electronic fuel injection setup instead of the Quadrajet 4 barrel carburetor. It plays much more nicely on 91 octane ethanol-free than anything else, even still after all that to make it work on 87 octane with ethanol. I love the old thing so I’ll just pay extra. It’s a wonderful machine, way ahead of it’s time.
My mom wanted one of those GMC’s so bad. A relative who worked at GM explained they had an Oldsmobile platform. What color is yours? Aren’t they fiberglass bodies, too?
Probably EMP resistant as well.
Hang onto it for sure.
Did you ever read *One Second After*?