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Old 11-22-2021, 09:29 AM   #2
S10Fan
Old Heap Driver
 
Join Date: Mar 2008
Location: Newport News, Va
Posts: 2,643
Re: GM crate 350 HO runs fine on regular 87?

A TV show on the Motor Trend network here in the states, "Engine Masters" did a fuel test using different octane levels. The test basically showed little to no difference between grades of gasoline. If you're not racing and not pinging, go for it was their conclusion.
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Bryan

'99 Silverado 1500, 4.3, 5-speed, reg cab, short bed
'50 Chevy 2DR Hard Top, 350/350, M2 Front End, 3:08 gear, cruiser.
'40 F**d Sedan, all Chevy power, Heidt's front end, TCI rear, nice driver.
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