What kinda carb is this?

[ZMAR]

Is this a double pumper or just a single, also one of the main numbers I got off of it is"6R-4237B"
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[Gumby]

2 bowls, double pumper

holley Qjet design

[ZMAR]

Originally Posted by Gumby

2 bowls, double pumper

holley Qjet design

If I have it rebuilt would it be alright to put on a stock 350? I'm not sure what cfm it is.
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[ZMAR]

Ok after searching a little more I found it was a 650cfm qjet replacement for 327-400 motors. Good deal I'm going to get it rebuilt now!
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[ZMAR]

If I swapped out intakes which would be best for the holley?
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[Wrenchbender Ret]

If it is a replacement for a Q-jet it will be a spead bore type carb. It will work best with an Edelbrock Performer manifold or other spread bore manifolds. There is not enough photos to tell but it probably is not a double pumper.

[csb#356]

It is a spreadbore and a double pumper for sure, you have an accelerator pump on both the primaries and secondaries. I could be wrong but it looks like you are missing some screws on the base plate.

[ZMAR]

Originally Posted by csb#356

It is a spreadbore and a double pumper for sure, you have an accelerator pump on both the primaries and secondaries. I could be wrong but it looks like you are missing some screws on the base plate.

What model is this carb? I'm having hell finding a rebuild kit!
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[Gumby]

That old n crusty, id want a pro shop rebuild, not just toss a kit in it.

[Captainfab]

You need the list number off of the choke horn. It's probably a 6210

Originally Posted by ZMAR

What model is this carb? I'm having hell finding a rebuild kit!
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[prostreetC-10]

Originally Posted by csb#356

I could be wrong but it looks like you are missing some screws on the base plate.

He's not missing any screws.....he just has 2 in the wrong spot. The 2 center ones should be moved up/down depending on how you look at it. The center holes are left open from the factory.

[ZMAR]

Originally Posted by prostreetC-10

He's not missing any screws.....he just has 2 in the wrong spot. The 2 center ones should be moved up/down depending on how you look at it. The center holes are left open from the factory.

So I need the move the two between the primaries and secondaries and move them out by the secondaries?
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[prostreetC-10]

Correct and I'm not sure I will EVER understand why Holley machines the main body for screws and the base plate has the holes for them and yet they don't come with them.

[raceman6135]

Originally Posted by Captainfab

You need the list number off of the choke horn. It's probably a 6210

I agree with the captain --- looks like a list 0-6210 to me.




Clean away the grunge on the air horn where the choke is. The list number should be stamped there:

[prostreetC-10]

You have a 50% chance of getting the cfm guess right since they only made 2 Holley spread bore CFM sizes. A 650 and an 800. 800's are super easy to spot because they have huge rear boosters.

[GASoline71]

I always loved the look of those big rocket boosters...

Gary

[prostreetC-10]

They are so high in the venturi that you would think the signal would flat suck!

[ZMAR]

Originally Posted by raceman6135

I agree with the captain --- looks like a list 0-6210 to me.




Clean away the grunge on the air horn where the choke is. The list number should be stamped there:

Thanks a lot ill go look right now
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[prostreetC-10]

Interesting how that little Holley wound-up with those super old needle and seats. The carb can't be all that old because of the plastic vac housing top.

[GASoline71]

The 1850 on my Dad's 355 has the old style bowls with adjustable floats/needle and seats. Also has the metal vac housing too. I didn't like it when Holley switched the 1850's over to non-adjustable floats.

Gary

[prostreetC-10]

Yes but those needles use an O ring to seal and once you crack them loose, it's very hard to get them to not leak.

[SSC's76]

Originally Posted by Gumby

2 bowls, double pumper

holley Qjet design

2 bowls is not a double pumper. a double pump carb is a mechanical secondary with 2 accelerator pumps


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[prostreetC-10]

I'm pretty sure he knows that. I think he was just stating the facts.....it has 2 fuel bowls and is a double pumper. ;o)

[ZMAR]

The numbers on the choke horn are 6210-3. Where can I find a rebuild kit for it?
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[dwcsr]

Originally Posted by ZMAR

The numbers on the choke horn are 6210-3. Where can I find a rebuild kit for it?
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I have one of those on mine and i was hoping it would be better than a QJet. Its been nothing but trouble and after some research I have found that its the worst of both Holley and Qjet carbs combined. It has minimal adjustment to make it run correctly. It boils over without a phenolic spacer, The floats hang often and flood out the engine, I'm going back to a Qjet. I've had to rebuild mine 3 time in 2 years before it finally work half way decent.