Nos carbs.

[383nova]

Looking for information on the following CARBS.

Theses are nos holley carbs that i am trying to
Find out if they are used in any class racing.

This is not a for sale ad, information only. What we do not want to do is sell them as just nos carbs if racers van use them.

List:
9834 Julian date 3037
8418-1 jd 961
4781-3 jd 1780
4781-2 jd 2712
3310 jd 923
3310 jd 584
4781-8 jd 2516
4781-2 jd 1758
4881-8 jd 2516
6210-3 jd 2554

Quick Fuel 585

Can someone tell me if this carb number is legal and used on a 1968 or 1969 big block camaro. Stock or superstock.

Thanks for any help. It goes much deeper than you will know.

[Chevy55]

These are the only Holley #s I found in the NHRA Engine Blueprint Specifications.


1969 Chevrolet

400/427 3-2 Holley F&R R-3659A R-4055A

375/396 1-4 Holley R-4346A

425/427 1*4 Holley R-4346A

430/427 1-4 Holley R-4296A

435/427 3-2 Holley F&R R-3659A C R-4055A



1968 Chevrolet

375/396 1-4 Holley R-4053A

400/427 3-2 Holl F&R R-3659A C R-4055A

425/427 1-4 Holley R-4052A

430/427 1-4 Holley R-4054A

435/427 3-2 Holley F&R R-3659A C R-4055A

[Tom Broome]

When you're unsure of the original specs, parts, or potential OEM application of a specific List Number Holley carburetor, you need the Holley Illustrated Parts & Specs Manual. Available as Holley part number 36-51-7, around 50 bucks from many popular locations (including the Big"A".

I'm sorry, mine's somewhere in storage boxes 500 miles away so I can't look them up for you.
PS If your doing online shopping and it seems like the seller "SuperShops" has lots of Holley 'Group' stuff available, that's because it's.....Holley.

[383nova]

Thanks the info and the lead on how to find them going forward.

Much appreciated

[Dwight Southerland]

Read pp.58-62 of this document -

https://www.nhraracer.com/Files/Tech...edProducts.pdf


Also, from the Rule Book, Section 11A, page 3:
"CARBURETOR
Must be correct year, make, and model specified for car’s
engine; fuel or air bleed passages may be resized. Drilling idle
holes in primary throttle blades permitted. Other modifications
prohibited. Sandblasting, grinding, flash removal, dry film
coating, or any other modification to carburetors prohibited.
Replacement carburetors permitted provided they are
same model, type, throttle bore, and venturi size. Computer
carburetors use latest model non-computer carb for engine
application. " (Emphasis mine)

[Terry Cain]

Originally Posted by Dwight Southerland

Read pp.58-62 of this document -

https://www.nhraracer.com/Files/Tech...edProducts.pdf


Also, from the Rule Book, Section 11A, page 3:
"CARBURETOR
Must be correct year, make, and model specified for car’s
engine; fuel or air bleed passages may be resized. Drilling idle
holes in primary throttle blades permitted. Other modifications
prohibited. Sandblasting, grinding, flash removal, dry film
coating, or any other modification to carburetors prohibited.
Replacement carburetors permitted provided they are
same model, type, throttle bore, and venturi size. Computer
carburetors use latest model non-computer carb for engine
application. " (Emphasis mine)

First part of that; Must be correct year, make, and model specified for car’s
engine; Year was eliminated years back. Model has been modified some. Example; Chevy's can now run a front fuel inlet Qjet instead of 90degree inlet as they came out with. Main thing they do now is measure butterflys, and Venturi's.

[BillK]

Originally Posted by 383nova

Looking for information on the following CARBS.

Theses are nos holley carbs that i am trying to
Find out if they are used in any class racing.

This is not a for sale ad, information only. What we do not want to do is sell them as just nos carbs if racers van use them.

List:
9834 Julian date 3037 Universal 600 cfm
8418-1 jd 961 1977 Ford service 460
4781-3 jd 1780 My IP&S book only goes to 4781-2
4781-2 jd 2712 Universal 850cfm double pumper
3310 jd 923 Shows 65 Chevelle 396/425
3310 jd 584 Same
4781-8 jd 2516 " "
4881-8 jd 2516 not in my book
6210-3 jd 2554 1965-70 327-402 650 cfm aftermarket replacement

Quick Fuel 585

Can someone tell me if this carb number is legal and used on a 1968 or 1969 big block camaro. Stock or superstock.

Thanks for any help. It goes much deeper than you will know.

From my 1989 Holley Illustrated parts and spec manual

[Dwight Southerland]

Originally Posted by 383nova

Can someone tell me if this carb number is legal and used on a 1968 or 1969 big block camaro. Stock or superstock.

The two 3310 carbs you listed can be used on a 1968 or 1969 big block Camaro using the 396-375 engine or the 1969 Camaro using the 427-425hp engine.