I'd start with the main jets. You must have a vacuum gauge, awesome for tuning a carb. Notice how with any acceleration the vac will drop to 5 or lower? That is when the PV is open. That fuel circuit is separate from the main jets.
Get your hands on a WBO2 as has been talked about.

I have a extra that could be rented out. It is the Innovate unit with the long wire. I recommend the bung be put within 3 feet of the engine.

Inliner Member 1716
65 Chevelle Wagon and 41 Hudson Pickup
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