they recommend it. Its better to use anyways. I had a low compression 71 skylark witha 350 and it deff. ran better with 91 octane.

As for me a racer. Not even close, parted both 71 skylarks and a 53 ford.

Im looking for my dream car, 1964 skylark covert. and/or a 66-67 buick GS.

https://bs-bp.forumotion.com/