I've been told before about the 331/365/390 propensity for vapor lock but in the 23 years and 150,000+ miles that I've driven the Bismark, I've fortunately never suffered from it. That includes hot summers in Atlanta and regular trips to Tampa, Florida in 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)