I think Adam says 65+ at the sprocket. He says a lot of porters claim 75-85hp which I believe he said was BS. His numbers are realistic he says. I know he has made some 100hp bikes for salt flat racing. Some of his motors turn at 11-12,000rpm which is insane.
I just spoke with him and he says the Smart carb runs ****in superb on a 500 he just put together. That says a lot. I think he was a little skeptical at first. I was going to try mine out today but due to the flooding in Calgary the track is closed.
I have a 250 type clutch setup. Adam machined a Barnett basket with a Hinson inner and a Barnett pressure plate. Works real nice and is a easy pull for a cable bike. I believe I used a EBC set of plates. The transmission has all new bearings and parts so it shift like a fine German clock lol