octane

hdbob5454

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recently bought a 70 lemans with the 350, motor is stock and wondered if anyone has run 87 octane in it , I know back in 70 regular was higher in octane been to busy really to be using it and when i'm not its raining
 
If you have the 2bbl carburetor you can try a 87. If the 4bbl carburetor you need 91 or 93. The 4bbl carburetor version came with higher compression.
 
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