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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Nov 2002 Posts: 2,763 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,763 | Jerry - the Carter 730s is one of the high end replacements for the Chevrolet engine.
Without pulling a carb to look at the passages, GUESSING one is for the vacuum power circuit, and the other is for the automatic choke.
When changing to any carburetor other than the original, one should ALWAYS use the mounting gasket supplied by the manufacturer of the carburetor in question.
I looked up the one for the 730s; it is Carter part number 1A-41.
Jon.
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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