Jon,

I've had one of your "regular" black diaphragms installed in my Carter carb for the last 3 1/2 years and have put over 10,000 miles on it.

The truck has operated exclusively on 87 octane, E-10 ethanol in that time and I have absolutely no problems with it.

1950 Chevrolet 3100 (Ol' Roy)

1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)