All great ideas so far.

Here are some observations on two items. When I punch it from rolling start it has a slight hesitation, then the outboards kick in.

Also, at idle, when the air blead holes in the center carb are covered slightly with fingertips, it will idle up and have a smoother idle. How can we fix this?

All carbs are the original 2300 series carbs and sent in to Promax for tweeking for a 340. The center carb was bought new and reworked by ProMax, as well as the original outboards with Promax jet plates (i have the jet sizes at home and i'll post tonight).

Pump squirter is stock.

My goal is to "feel like I've hit an ice patch" when I punch it.
thanks!