What is a good combination replacement engine and clutch for Argo?h

[andyw]

I have a 1970's Argo 6 x6 with a Kohler 440 2 cyl and 2 stroke, I want to replace the Kohler with a predator 22 hp 670cc 4 stroke. I would love to know what driver comet clutch would work best for the stock driven clutch on the stock Argo transmission. I don't want to go the trial and error route. Any advice on the best combination for the machine without spending a fortune