lower tendency for vapor lock?

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Posted by Jeremy Horvath [108.162.221.175] on Thursday, September 14, 2017 at 07:11:05 :

In Reply to: OT, but flathead Octane posted by Gary in CO [162.158.69.162] on Wednesday, September 13, 2017 at 20:31:08 :

That's about the only real advantage that I see to it. It's not going to be as efficient in a low compression engine.

However, Dave's '49 got spark knock running up WV hills on low octane. High octane made it quiet right down. That was right before it blew a head gasket. I suspect that it had some carbon deposits and timing was possibly advanced a bit to far.

Follow Ups:

Re: lower tendency for vapor lock? - Dave 13:34:37 09/17/2017

Re: lower tendency for vapor lock? - Matthew Welcher PWA 16:21:47 09/14/2017

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