Hi Jay,
Me too. I will probably put one on my 1950 Pacemaker.
For some reason, I am getting a lot of requests about clutches for the vintage Whizzers. I must admit I am surprised as I thought very few would be interested in an automatic clutch for the older Whizzers.
I already have one in testing [testing on the 1952 Roadmaster with a "300" motor and hot camshaft]and just dropped off a few more parts to be welded for additional prototypes.
Worked on your cylinder today for the "500" motor, bottom end is complete. Needle crank, .193" camshaft, nice side-cover, new head....won't be long.
have fun,