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Old 08-09-2012, 07:42 PM
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Help with IDing my carb

I bought 2 holley carbs from a guy that he thpught they were 650 cfm double pumpers. I have found the list numbers on them but our parts house in town that the owner has been rebuilding carbs for longer then i have been alive.the numbers are 1850-5 0681 and 1850-3 0132. I was wanting to see if anybody could help me find out what the cfm is on them and what kit number i need i want to put a trick kit in one of them if they have that number also.
Thanks

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Old 08-09-2012, 11:46 PM
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moss

here's link at Holley

Holley Performance Product Search

1850 is a 600 cfm vacuum secondary.

some of them are blower carb's and

there's something funny about them.

have a nice day!
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Old 08-10-2012, 12:01 AM
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RH......the 1850 series carb is a very popular mild build unit. In no way is it a "double pumper" and it's not even a dual feed type carb but it's been around a long time. As said prior it's a 600 cfm and would be a decent carb for a 283-327 sbc or 289-302 sbf.
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Old 08-10-2012, 01:14 AM
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As for the -3 and -5 the higher the number the newer it is, but doesn't make it any better.Good carbs and EZ to work with be sure and visit the Holley web site for more tuning tips.
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Old 08-10-2012, 04:32 PM
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my bad, here's the tunnel ram or blower carb.

Holley 4160 Dual Quad 450 CFM Carburetor - Speedway Motors, America's Oldest Speed Shop

Holley List 4779.

word is it won't work too good as a single carb.

i don't see why not , but whatever.

those 1850's should work ok, but you ought to go through them.

have a nice day!
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Old 08-10-2012, 11:45 PM
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r h moss

well, here's your Trick kit.

Holley Performance Products Trick Kit Carburetor Rebuild Kit*37-933

about $100.

the renew kit is about $25.

get one of those, Gunk carb dip & Gumout carb cleaner

and away you go!

have a nice day!
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Old 08-11-2012, 11:28 PM
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Quote:
Originally Posted by the california kid View Post
my bad, here's the tunnel ram or blower carb.

Holley 4160 Dual Quad 450 CFM Carburetor - Speedway Motors, America's Oldest Speed Shop

Holley List 4779.

word is it won't work too good as a single carb.

i don't see why not , but whatever.

those 1850's should work ok, but you ought to go through them.

have a nice day!
I'm not exactly sure of what it is you're saying- but the carb linked to isn't a 4779. A 4779 is a common double pumper, 750cfm. It's a 4150, not a 4160.

The 9776 linked to is one of a very few mechanical secondary non double pumper 4160 carbs and it isn't made for single carb use. Another mechanical secondary non double pumper is the 4224 660 cfm "center squirter" carb- also originally made for dual-4 use.
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Old 08-11-2012, 11:34 PM
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Quote:
Originally Posted by Rhmoss90 View Post
I bought 2 holley carbs from a guy that he thpught they were 650 cfm double pumpers. I have found the list numbers on them but our parts house in town that the owner has been rebuilding carbs for longer then i have been alive.the numbers are 1850-5 0681 and 1850-3 0132. I was wanting to see if anybody could help me find out what the cfm is on them and what kit number i need i want to put a trick kit in one of them if they have that number also.
Thanks
As has been said, you have a pair of 600 cfm vacuum secondary 4160 Holley carbs. They are commonly used on milder builds up to 350 cid on dual plane intakes.

Look up the factory specs along with the Renew and Trick kit numbers HERE.
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