A good Super Stock engine will pump 140 psi on the compression gauge and make 650 horsepower and not run well on 87 octane.
If you look in the race section there are guys running 14.5 : 1 compression on 93 octane. So 11.4 with 91 should be a slam dunk.... If it's on the Interenet or in a magazine it's gotta be true.
Kinda curious why water injection became a million dollar industry back in the 70's when high octane fuel started to disappear...... Things that make one go hmmmm!
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