Quote:
Originally Posted by 70 Dream
We all know the stock 10.25 CR is too high for today's gas . . . .
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We do???? 
I run one at 10.38:1 with a RA IV cam; runs fine on 93 octane. I run another (non-Pontiac) at 10.70:1 with a stock cam; runs fine on 91 octane, except when pulling the loaded 18 foot trailer. When pulling the trailer, I will get detonation if I don't use 93 octane, but no detonation on 93 octane.
Jon.
__________________
"Good carburetion is fuelish hot air". 
"The most expensive carburetor is the wrong one given to you by your neighbor".
If you truly believe that "one size fits all" try walking a mile in your spouse's shoes!
Owner of The Carburetor Shop, LLC (of Missouri).
Current caretaker of the remains of Stromberg Caburetor, and custodian of the existing Carter and Kingston carburetor drawings.
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