Holley Carb Identification Help.. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jefe · 09-29-2002, 05:56 PM

I have a Holley carb that a buddy gave me...sais its a 780 cfm, need to know if it is a double pumper, what CFM it is exactly and probably the part number or where it is located on the carborator. I know it is a dual feed square bore...but that's it. Any help would be appreciated, Thanks guys!!

crazy longhorn · 09-29-2002, 06:16 PM

Look on the front of the air horn(dr side) for the #. A dp will have an acc pump on the rearpass side. the vac secondaries wont have this. post the # , & somebody can help.........Crazy Al

Johngear67 · 09-29-2002, 07:41 PM

go to the holley web site and it will give you all of the info you need with the right list number

Jefe · 09-29-2002, 09:54 PM

List-3310-1 is what is on there.
then below that it sais 0884. Tried to look at the numbers on the Holly site and it was down or something thanks.

LT-102 · 09-29-2002, 10:43 PM

3310-1 is a 780 cfm. I may not be correct, but I believe the 0884 indicated that it was built in August of 1984. The Holley site is back up now.

crazy longhorn · 09-30-2002, 09:50 AM

Your 3310-1 is a 4150(has a rear metering block). as posted, it is a 780 cfm,& has vacumn secondairies. 72 primary jets, & 76 secondairy jets(factory). Renew kit # from my Holley book is 37-332......the trick kit is #37-915. It should be a good all around carb to run on 350- 455 ci engines,with a little tuning for the application. good luck.......crazy Al

09-29-2002, 05:56 PM	#1
Jefe Registered User Join Date: Jul 2000 Location: Chandler, Arizona, USA Posts: 299	Holley Carb Identification Help.. I have a Holley carb that a buddy gave me...sais its a 780 cfm, need to know if it is a double pumper, what CFM it is exactly and probably the part number or where it is located on the carborator. I know it is a dual feed square bore...but that's it. Any help would be appreciated, Thanks guys!!

09-29-2002, 09:54 PM	#4
Jefe Registered User Join Date: Jul 2000 Location: Chandler, Arizona, USA Posts: 299	ok. List-3310-1 is what is on there. then below that it sais 0884. Tried to look at the numbers on the Holly site and it was down or something thanks.

09-29-2002, 06:16 PM	#2
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	Look on the front of the air horn(dr side) for the #. A dp will have an acc pump on the rearpass side. the vac secondaries wont have this. post the # , & somebody can help.........Crazy Al

09-29-2002, 07:41 PM	#3
Johngear67 The Mighty Blue Bottle Join Date: Mar 2001 Location: Canada Sk Posts: 134	go to the holley web site and it will give you all of the info you need with the right list number __________________ 1967 Chevy C 10 Custom 350 780 cfm 467 lift 278 dur ported&pollished 2400 stall 350TH B&M shifter 175 shot of nitrious

09-29-2002, 10:43 PM	#5
LT-102 Registered User Join Date: Nov 2000 Location: Greenville, Oh USA Posts: 166	3310-1 is a 780 cfm. I may not be correct, but I believe the 0884 indicated that it was built in August of 1984. The Holley site is back up now.

09-30-2002, 09:50 AM	#6
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	Your 3310-1 is a 4150(has a rear metering block). as posted, it is a 780 cfm,& has vacumn secondairies. 72 primary jets, & 76 secondairy jets(factory). Renew kit # from my Holley book is 37-332......the trick kit is #37-915. It should be a good all around carb to run on 350- 455 ci engines,with a little tuning for the application. good luck.......crazy Al



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