I was under the impression the C6 used the Oval carbs (Mercarb) and when finally released the T2 used the Tillitsons.

The 650XS and the T2 having the original rings would have been the real thin rings then, I assume. But then again I sometimes assume too much!

Chick, and Jock went on the found a marine dealership on US 1 in Miami, Boat Center, and Bill Rowell was the service manager. Bill also was the referee for all the Miami Outboard Club's OPC races in the 70's. Sirois went on to GN racing.