You are bidding on a used 800 CFM Spreadbore Holley Double Pump Mechanical Secondary Carb List #6213. This carburetor ran perfect on my chevy 454 last year.
Spreadbore carburetor mounting dimensions, distance from center to center of bolt holes in baseplate are as follows: left to right 4 1/4”, front to back 5 5/8”.
• Choke Setup - this carburetor uses a very simple and effective factory oem "divorced" also referred to as "remote" choke. The bi-metallic heat activated choke works by using engine heat off the manifold to activate the bi-metallic spring, which flips the choke lever open. It is easier to install than an electric choke (doesn't require a pos. wire), plus will never burn out and cause problems like the electric chokes do after several years of use. This is the same proven choke system that GM used for many years on its factory 4bbl quadrajets.
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Location: pasadena, Texas