Rich, IIRC the 3310 was a square bore vacuum secondary carb that they used to refer to as a 780cfm. I've seen it recently as a 750, but I don't recall them having a rear accellerator pump. SC -----Original Message----- From: Rich Kinsley [mailto:rlkinsley@xxxxxxxxx] Sent: Monday, November 23, 2009 6:10 PM To: 1962to1965mopars@xxxxxxxxxx Subject: Holley carb ID Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies I have a Holley carb that I'd like to ID. I was told it's a 750cfm. It's a 4bbl double pumper with 3310-6 and 2959 stamped on the choke air horn. There's a P-80 cast on the main body side. Under the air filter gasket area there's a 6R 6931 and the sec nozzles are ^SR-107. Can anybody ID it correct? ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html. ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.