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bdtutton · 10-15-2021, 11:55 PM

I started this thread and reading through the comments there are a couple of things that seem to make a big difference.....high compression heads and overdrive gearing. I don't have either of those. It seems that at higher speeds a high compression head and proper gearing could greatly improve fuel economy.
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Comments??

10-15-2021, 11:55 PM	#20
bdtutton Senior Member Join Date: Sep 2016 Location: Southwest Michigan Posts: 113	Re: Gas mileage question I started this thread and reading through the comments there are a couple of things that seem to make a big difference.....high compression heads and overdrive gearing. I don't have either of those. It seems that at higher speeds a high compression head and proper gearing could greatly improve fuel economy. . Comments??