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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: 2,767 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,767 | Unless you have a Rochester 4GC which is specifically calibrated for a 327, you may find it easier to learn about the Carter than to recalibrate the Rochester. Yes, Rochesters CAN be recalibrated, but the design makes re-calibration less easy than a Carter or possibly a Holley.
(Opinion) - there is NO BETTER CARB for a basically stock 300hp 327 than the Carter AFB 3720sb/3721sb. The 3720sb is a factory service replacement for the 300/327 with autotrans; the 3721sb for the manual trans. Since both of these are service replacements, they are available at less cost than originals.
And either of the Carters or the original Rochester will outperform the tripower in all areas except looks.
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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