When I did the Proform main body swap on my carb I ended up jetted 82/92 for max power with a PV in the primary only (air bleeds were 36/73). The car picked up 3 tenths and 3 MPH over the stock main body. The plugs looked a little rich, but it made the best power like that. Keep jetting up until the MPH fall off, then back it up a step and you're set.

I also tried square jetting it at 92/92, it ran just a touch better at the track, but it fouled the plugs WAY faster.