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Author
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Topic: Holley cfm varification
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N266fords
Gearhead Posts: 1429
From: Spokane ,WA USA
Registered: Apr 2003
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posted 04-14-2005 01:30 AM
   
3310 holley is it not a 750cfm some guys says its a 780 i said no its a 750. Which is it..
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clevelandstyle
Gearhead Posts: 1041
From: Connersville, IN
Registered: Jul 2001
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posted 04-14-2005 07:52 AM
My Holley book lists a 3310-1 as a 780 , but list 3310-2, 3310-3, 3310-4 as 750. They are have the same bore sizes and boosters.------------------
Ben
Grabber Green '70 Mach I 351C 4V
Robbin Egg Blue '79 Fairmont 408C 4V, 10.50 127 MPH
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Moneymaker
Administrator Posts: 26065
From: Lyons, IL, USA
Registered: May 99
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posted 04-14-2005 10:16 AM
quote:
Originally posted by clevelandstyle:
My Holley book lists a 3310-1 as a 780 , but list 3310-2, 3310-3, 3310-4 as 750. They are have the same bore sizes and boosters.
Earlier 4150 3310's have smaller boosters, ie 780 CFM.
Later 4160 3310's have larger boosters ie 750 CFM. ------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First NHRA & IHRA 289 automatic Superstock Mustang in the TENS 06-99
First SS/MA in the TENS 04-03
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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ciscokid
Gearhead Posts: 131
From: Ooltewah, TN
Registered: Jul 2001
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posted 04-14-2005 09:21 PM
Yeah, like Alex said. The original 3310-1 was a 780 CFM, model 4150 (which means it has a secondary metering block) and has "downleg" boosters while the 3310-2 and later are model 4160 750's with spray-bar boosters and secondary metering plates. All have vacuum secondaries and there are various choke setups.A lot of Chevy and Ford engines in the late 60's early 70's used variations of the 3310, with tuning, choke, vacuum ports and fuel inlets customized for the application.
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N266fords
Gearhead Posts: 1429
From: Spokane ,WA USA
Registered: Apr 2003
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posted 04-14-2005 09:39 PM
Thank you all very much
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