I've posted about this motor. I want to see if what the carbs see is adequate suction while cranking to get enough fuel into the cylinders to start adequately. I am thinking I can hook a vacuum gauge to a flat aluminum plate and duct tape that plate to the 2 barrel carb intake or even take carbs off and duct tape to intake ports one at a time to test. Problem is I have nothing to compare to, what woud be a good vacuum. Has anyone done this or other? What do you do to test this? Thanks SCO