What do you mean by "carb heat"?

Are you trying to get your carb warmed up properly or do you thing it's too hot?

I drive a stock 216 and have no problems with the carburetor getting too hot or not hot enough. The General knew best when it was designed.

The standard exhaust manifold with a working heat riser valve is all it takes to get proper performance.

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)