wondering what the main jet size is supposed to be on a rochester B, running it on a 1954 235 engine. currently has a jet in it stamped "57". the jet that was in it before was a 59 and it ran extremely rich. im asking because it runs leaner but the plugs are still getting relatively black. any links to places i could pick up some different main jet sizes?
Last edited by Mr. Dane; 12/15/2020 2:59 AM.
