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| | | | Joined: Nov 2002 Posts: 2,763 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,763 | Pete - I don't have a 4480s to look at, but suspect you are correct.
The 965s (up to 1956 engines) has ported vaccuum, as do the W-1's.
The 3211s (for 1957 and newer engines) has manifold vaccuum.
Carter specified the 4480s for use on Chevrolet engines 1963~1967.
I don't have a 1957 or newer Rochester B to look at.
At this point in time, you need a "distributor guy", not a "carburetor guy".
I cannot advise you on the advantages/disadvantages of ported vs manifold vaccuum.
Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | |
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