Is Quench Required?

RustyRatRod said

Amazingly, it will run on 87 without spark knock, but it runs MUCH better on either premium or 90 non ethanol, which is what I run in it now and it runs fine.

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Thank you. Have you run a cranking compression test? I'm curious what kind of cranking pressure it has.

It also seems like your current slant has quite a bit more camshaft than the other one?