Excellent information, thanks again.

But here's one more stupid question, and I should know this but alas, do both screws on the carb only adjust the carb vacuum or will one adjust the manifold vacuum. So when I attach to the carb port will I only adjust the screw that coincides with that port or will I have to adjust both. i'm assuming that when I attach to the other port I would then adjust that screw to match up with my carb setting. Am I on target with this thinking?