I drive a 51 Chev. Bel Air with a 216 bone stock and have had no unleaded fuel issues of any kind. My neighbor works at the Chevron Richmond, CA plant and the engineers there told him not to worry about that question if he uses their gasoline (that must be a sales gimmick)because one of my Vol. Firemen works at the Occidental (old 76) refinery up the bay a piece and they told him the same thing.
Normbc9
