That's interesting. The power reduction is only 10%? I thought it was more, like almost a 50% reduction? Something I read once.

If it were only a 10% power reduction, I could see converting my 11.25:1 427 Corvette to propane someday...if race gas becomes prohibitively expensive.

And if you kept a fuel tank onboard just in case there were no propane stations and you were stuck, all you'd have to do is put some race gas in with pump gas, in your gas tank and switch over.

Or is there more to it than that? For example, if you run methanol, you have to run much bigger fuel lines because of the reduction in BTUs. I am almost certain propane would have to have a much different transport into the engine, so switching between gas and propane would not be possible on the fly. Not without other changes on the side of the road. Right?


52 GMC 3/4 ton pickup
68 Big Block Vette
68 455 Firebird