Hi MF, I come across the PT only drilled bases on and off most are multi drilled Sapper if you put the Quantam on the Victa base you will need a Briggs spacer ring or you have to lift the motor 20mm because the shaft it linger than the Victa
Except for the Tornado or Razor base I imagine as they take the long shaft Victa PT.
Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!