I run 2 Rochester B carbs on a Fenton intake with Fenton cast iron headers, and I get better mileage with the 2-carbs. than the stock single. Maybe because it has more power and I don't have to have my foot in it all the time? I did have to bush the bases on the carbs as they were worn out and sucking air like Jim said.

To be long remembered as he's cruising in
The Passing Lane