Very Rare Holley 780 CFM Vacuum Secondary Carb.

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Forgot I had it laying around. Pulled it completely apart and cleaned and inspected it meticulously. Every thing except accelerator pump diaphram and power valve in excellent condition. This is a quasi emissions performance carb. with 600cfm size primaries and 800cfm size secondaries with a square flange base and Ford A/T kictown provision. With a mild 460 you should see double digit gas mileage, maybe even in the teens, that only might be surpased by a Quadrajet carb.. These carbs are rare and the only ones that I know that are harder to come across are the 6708 and 6709 650cfm and 750 cfm double pumpers with Ford A/T Kickdown square flange spreadbore. These ( This one and the 650 cfm version ) are their Vacuum secondary brothers. It will include a chrome fuel line with gauge port, spare metering block and metering plate/rear bowl gasket and I will get a new power valve the size of your choice ( it has a 7.5" now ) as well as a new accelerator pump diaphram. All other parts are in good runable condition, and it also has high flow needle and seats. It has 66-2 jets ( factory stock ) and a #42 metering plate. I will include some larger jets also.

More Pictures Coming soon.

Date Code: 2997

$175.00 plus shipping.

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I use one of these now and have to say it out performs the original Motorcraft carb by a 100% It is on the stone stock '78 460 in my car hauler. Throttle response is excellent and economy did improve. I sold these when they were new in the '70's at the speed shop I was working at. There was a double pumper version list # 7011 that is far more rare.

^^^^That's what I was saying GT. there is a DP version List #6709 also, rare as hen's teeth.

Sold.