Starving for gas at highway speed

[barnstuf]

A friend purchased one of the new Zenith carburetors that have been on the market for quite a few years, and up to 45 mph everything was fine, over 45 he experienced hesitation and starving for gas. He tried to find the problem without result and turned the carburetor over to a professional Zenith restorer. After serious testing he found the secondary well side opening was a tiny bit too small so he enlarged it to proper specs and the problem was solved.