Let me simplify this for you.
It is not the parts, it is a battle between Octane and cylinder pressure.
Detonation is what destroys engines.
We have made over 800 RWHP on Stock long blocks with either race gas or E-85 and they live a very long happy life.
Pump gas Octane is your limiter on what you can and can not do, It's not the parts.
Ted.
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