383 initial setup

I love it! Sounds like a great old school setup :thumbrig:.

Pump nozzle wise, they all came with #31's F&R. That should be fine to get you started with that intake. As far as the jetting, there was a pretty good spread on the later model 800's vs the early carbs. Taking a wild guess at a starting point, I'd look at 72's up front & 80's out back. You can always sneak up on the secondaries when you get some Mph numbers under your belt...

Oh, and the 6.5" PV should be just about right with your cam, as long as the timing is good to go. :)