Mopar Guys In CANADA..

This is going back a dozen years or so but when I had my 75 Olds 442 and raced it in the quarter (bone stock car) I ran two types of fuel. When I ran 94 octane Chevron it would always ping a little on every shift of the gears. The next week I tried 93 Octane/10% Ethanol Mohawk/Husky and the Olds didn't skip a beat. It sure worked for me at the time but that was a long time ago so maybe things have changed since then?