1 Ton Tommy, If all those engine designs get your head spinning, study the Honda Compound Vortex Controlled Combustion engine of the 1970s. It has two combustion chambers per cylinder and burned so efficiently and cleanly that no catalytic converter was required to meet emission standards.

I had one of those in college and got 35mpg with no computers and breaker point ignition.

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)