Chevs of the 40s Community Forum

Octane selector

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    On my 1948 Chev. with a 1950 engine; Given the known octane of modern gasoline do I really have to fiddle with the octane selector? That is, trial and error until I get a “slight ping” under full acceleration as the shop manual calls for? Or is there some known setting that I can use without the rig-a-marole. Thanks.

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