This thing seems awfully rich. I ran the air/fuel screw in until the engine stumbled and then back out until it stumbled again. There was very little difference in the vacuum reading off the intake. In fact, it was only about an inch. I currently have both carbs set for the max vacuum which is about mid point. Like I said, she sure smells rich.

What are your thoughts?


Jerry Acheson
Indianapolis, IN
57 Chevy 3100