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Old 07-22-2011, 09:47 PM
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holley or q jet

i currently have a qjet on my 72 318 satellite that now needs a complete overhaul. i have been offered a 3310 holley carb that needs a re build for 50$.
im tempted but have no experience with this particular holley, is it worth the extra few dollars to go with this holley and has anyone had experience with this carb?

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Old 07-23-2011, 02:03 AM
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First the 3310 is 750 CFM,too much for a 318 it is also a square bore carb which means you would need an adapter and spread bore to square bore adapters are bad for flow.I would pass on it and get your carb rebuilt.
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Old 07-23-2011, 02:33 AM
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My qjet is square bore also, the engine had a 270h cam intake and headers. I'm also picking up a set of heads which is why I was thinking 750.
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Old 07-23-2011, 08:01 AM
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Q-Jets are spreadbore, 750 or 800 cfm. If its a squarebore, then its an early/mid 60's Rochester(not Q-jet)
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Old 07-23-2011, 08:09 AM
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qjets are all spreadbore. are you sure its a qjet?
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Old 07-23-2011, 08:12 AM
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could it be a carter thermoquad? they were original equipment on mostly Chyrsler products from 1971 to 1985.
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Old 07-23-2011, 12:57 PM
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Quote:
Originally Posted by va4cqd
could it be a carter thermoquad?
Could it be that the O.P. doesn't really know what he has?
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Old 07-23-2011, 01:32 PM
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Quote:
Originally Posted by joe_padavano
Could it be that the O.P. doesn't really know what he has?
I would like to see a picture posted of it top and bottom so we all can I.D. it,I have a Holley spreadbore from a Mopar motorhome sitting in the garage.
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Old 07-24-2011, 06:46 AM
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I meant spreadbore, its a typical qjet off a late 70's chevy
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Old 07-24-2011, 08:16 AM
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a properly rebuilt qjet would get better fuel mileage
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