Your welcome Art, anytime we can be of help dont hesitate to make a post.
Probably 83 square would be a good starting point if you go without the PV's, just keep playing with it going up or down on the jets 1 or 2 jet sizes at a time and see what makes the car the most consistent.
Note: make only one change at a time and always run what you brung making changes inbetween rounds is a no no unless its absolutely necessary.
I prefer to have mine square and a tad on the lean side.
If you bracket race like I do and especially if your race at night where it gets cooler as you get into the later rounds a fat or rich carb will give you fits trying to keep it dialed in because as the night air cools it becomes more dense which helps the engine makes more power so it will usually make the car really start picking up between rounds, but if you have it a tad on the lean side it doesnt do it as much.
To help with a possible off idle stumble on a carb thats alittle on the lean side I always used a 50cc acc pump on the primary only which will give you super crisp throttle response.
I hope this helps and goodluck, Charles