Drained the tank and new in. The backfire subsided a great deal to almost gone. Question the knob on the firewall side of the DIST is for what? Octane or vacuum advance adjustment? thanks all!
~ BD. "You won't find me in an old folks home" Pioneer Florida Cracker 1958 Apache Stepside 1958 Apache 1/2 ton Panel 1959 Apache 1/2 ton Panel