A Lot Of Old Trucks

Before and after; restoration

 

I used to dial in and put Sunoco 260 in my Harley-Davidson Sportster.

Those days are gone.

 

You can just replace your original valve seats with hardened ones and continue riding with today's pump gas. The only worry you'd have is if you can't get gasoline which isn't adulterated with alcohol. In which case, a vintage Harley's fuel system may not be immune to corrosion