Just wondering I picked up a 1967 400 with 670 heads and my question is will it run on 93 octane or do I have to do modifications?
Have you tried it or is it not ina running vehicle?
1968 400 Coupe, verdoro green, black vinyl top 1968 400 Convertible, verdoro green, black top 1971 Trans Am, cameo white, auto 1970 Buick Skylark Custom Convertible 350-4(driver)