Yeah, that's where I thought you were going. I've seen that setup before. I wouldn't want a pulsa-jet setup on that ride either. The problem I see, even with the newer style carb, it's still a carb designed for a lawnmower. It's not really meant to have fluctuating throttle settings. I would think you could still use your intake, with this carb and if you went with the PV-22 your carb size would be just about ideal, for your engine.
View attachment 286596
View attachment 286597
these are Kenneth Boughton's pics. He has laid out a complete set of instructions, on installing this carb.