318 MAX fuel economy builds?

gagembassett said

Right right and that's fine. I was just curious if you are trying to oush the limits of maximum fuel efficiency is if you need to push the limits for compression too. I was already thinking about the 9:1 because I know that's the comfy area that most factories ran but didn't know if pushing it or lowering was better

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Any time you raise the compression you make the engine more efficient. Research expansion ratio. It’s a BIG deal.

But you have to be able to build a combination that is capable of the compression ratio you want and do it without making it miserable to tune or it’s so detonation sensitive you want to pull the pin on a grenade and drop it on the carb.

It can be a fine line there.