The manifold to head interchange WHEN USING STOCK MANIFOLDS:

(1) 1955~1960
(2) 1961~1964
(3) 1965 - up

When using aftermarket manifolds, SOME will fit 1955~1964 by changing a couple of plugs.

Jon.

Good carburetion is fuelish hot air
The most expensive carburetor is the wrong one you attempt to modify.
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