I have a chance to buy a holley spreadbore carb it is a mechanical secondary carb, would anyone know what it could be from? and what CFM it could be? i was told it is a factory carb.

Thanks Jeff
68 conv.

It could be a 650 or 800 it was not a factory carb. The 650 works ok if you don't have 2.73s in the rear end but I really wouldn't recommend it.

I think the mech sec's kill any benifit the spread bore might have brought you mileage wise...

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...Dennis
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