I ran into similar running conditions when the '47 became road worthy. The Rochester single-barrel was replaced with a Carter YF and the dual action fuel pump was replaced since it was producing about 8-9 psi. Additionally, I found that my new reproduction 'vented' gas cap wasn't venting at all. It might be just that simple, try removing the cap and go for a spin.


Andy

His: 1947 Chevrolet 3104
Hers: 2008 American Saddlebred

"I proudly Stand for the Flag and Kneel for the Cross" Unknown