Amen! Anything above about 9.5:1 is very difficult to find gas for these
days (unless you have keys to the airport 100LL pumps 8^) ). I had a
302ci F#$d that was running 10.5:1 and a small-block Chevy (350ci) that
was 11.5:1, both motors had a critical NEED for high octane gas. I was
buying 104+ Octane Boost by the case for about 2 years. In very severe
cases, detonation can blow a hole in the top or a piston, or even bend
rods. It is not something to look forward to. A friends 396ci Chevy blew
holes in the top of two pistons due to severe detonation.
Kevin Lake
56 GMC Suburban/napco
----------
> From: MarkNoakes@aol.com
> To: oletrucks@autox.team.net
> Subject: Re: [oletrucks] Octane inquiry
> Date: Monday, May 31, 1999 4:12 PM
>
<snip>
>Try proving that high octane gas doesn't matter in an
> 11:1 compression ratio late 60's muscle car. Running low octane will
destroy
> them.
<snip>
>
> Anyone else?
>
> Mark Noakes
> Knoxville, TN
> 58/56 Suburban
> 66 Corvair Monza
> 86 Silverado
> 86 Corvette Indy convertible
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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