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Author
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Topic: Holley Model 3160, 3-barrel???
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Ryan Wilke
Gearhead Posts: 2494
From: Stanton, Michigan 49707
Registered: Oct 2000
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posted 08-22-2002 09:29 AM
   
Hey Guys,
I think it would be a 3 barrel carb as the 2ndarys have no division between the rear barrels! It appears to only have the front 30cc(?)booster pump, so no 2ndary squirter. It has a list # of 3916-19, the vacuum canister is VERY large, maybe 4" in diameter! The fella was told it is rated at 950cfm....
According to what I've read, it was designed for NASCAR, so I'm thinking it would ONLY work well above 5K rpms..... What can anybody tell me about this carb? Can vacuum diaphrams & springs and other necessary rebuild parts still be located for this thing? I'm wondering if it's worth trying on a stroked 460 (501") with a 4-spd Jerico drag-only '69 Stang? Thanks in advance for any & all your help! Ryan 
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Bob Hopkins
Gearhead Posts: 362
From: BRIDGEPORT NJ USA
Registered: Jan 2001
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posted 08-22-2002 10:19 AM
there are/were 2 versions as I remember 950cfm and 1050 cfm? They wer run on NASCAR engines untill Holly came up with the Dominator series carbs, I have 2 of them I bought at swap meets years ago ,Only thing different I have noticed was the secondary diaphram and rear metering block gasket,I'm hoping somebody reads these posts and replies with vendor for these parts too.
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Ryan Wilke
Gearhead Posts: 2494
From: Stanton, Michigan 49707
Registered: Oct 2000
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posted 08-22-2002 10:22 AM
Thanks for your reply, Bob!If these carbs were pre-Dominator, would you think that would mean that a Dominator would be a better carb to use with my suggested BBF? Ryan [This message has been edited by Ryan Wilke (edited 08-22-2002).]
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Bob Hopkins
Gearhead Posts: 362
From: BRIDGEPORT NJ USA
Registered: Jan 2001
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posted 08-22-2002 11:09 AM
Unless your a old fossel like me the late style dominator will probually work better as long as you have a dominator style intake, the "3barrel" is/was based on the 3310 780 cfm Holley and will fit on standard flange open plenum intakes.
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Just Strokin
Gearhead Posts: 754
From: Tuscaloosa, Alabama
Registered: Dec 2001
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posted 08-22-2002 11:16 AM
The dominator would be a better carb in most cases. It is current technology where as the 3 barrel hasn't been refinded over the years.I believe you can take the 3310/780cfm kit and cut the base plate gasket to fit the 3 barrel and you can use the diaphram unit of the later model 1850/3310's... From what i have read, Ford needed more cfm than any Holley carb could flow at the time in the late 60's early 70's for their B9's in NASCAR. They worked with Holley to create the dominator carb. The original 4500's were sand cast and would flow more than the current carbs with the same throttle/vernturi sizes as today's 4500 carbs.
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Rory McNeil
Gearhead Posts: 1687
From: Surrey, B.C. Canada
Registered: Nov 2000
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posted 08-22-2002 01:00 PM
I`ve had several 3 barrels over the years, & they are still a decent carb, but carb kits & sec. diagprams are pretty much swap meet items these days. The way to tell if you have the 950cfm or the 1050, is to look at the secondary boosters. The 950 uses a conventional looking booster, similar to that used on most 4150-4160 carbs, while the bigger carb just has a pair of brass tubes dumping into the secondary side, with no rounded booster on the ends. As for the sec. diagpram, a friend bought a diagpram for a 440 6 Pack MoPar, but had to modify the rod, as the length is different. Those 3 barrels sure have a biziarre looking choke set up, don`t they?  ------------------
78 Fairmont 428 4 speed 10.20@130mph
80 Fairmont 302 5 speed 12.8@105mph
85 Mustang NHRA Stocker under construction, 302 5 speed
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Ryan Wilke
Gearhead Posts: 2494
From: Stanton, Michigan 49707
Registered: Oct 2000
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posted 08-22-2002 01:03 PM
quote:
Originally posted by Just Strokin:
I believe you...can use the diaphram unit of the later model 1850/3310's...
Do you mean to say that you think I should be able to retro-fit the late model (smaller) diaphram unit to it and not use the VERY large (original-style) diaphram? Thanks in advance, Ryan
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Just Strokin
Gearhead Posts: 754
From: Tuscaloosa, Alabama
Registered: Dec 2001
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posted 08-22-2002 01:15 PM
I believe you can. It has been awhile since I have even looked at the 3 barrel I have, but I want to say that I screwed on the standard size vacuum pot from a 4150/4160 carb.I know when I bought it used, it had the Mr Gasket mechanical secondary gears and the double squirter kit installed on it. I also took a 3310 secondary shaft and made a new shaft for the rear throttle plate on a second 3 barrel I use to own years ago.
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Ryan Wilke
Gearhead Posts: 2494
From: Stanton, Michigan 49707
Registered: Oct 2000
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posted 08-26-2002 04:44 PM
Hey Alex;
Have you had any experience(s) with these 3-barrels? Any comments regarding them? Your opinion is always valued.......! Thanks!! Ryan
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Moneymaker
Administrator Posts: 27499
From: Lyons, IL, USA
Registered: May 99
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posted 08-28-2002 10:26 AM
Yeah, I had a few and installed a bunch of them.  I liked the 950 versions on large engines with automatic transmissions. The 1050 units were just too big for anything we fooled around with in the 70's. They dumped so much fuel that you had to change oil almost weekly. The reason for the large holes in the choke plate were to prevent flooding on start up.
On the 950's I always installed a 50cc pump for best results and a medium secondary spring. We did not have the torque converter technology that we do today back then and getting an automatic to leave was a real science. Lot's of distributor and carb tuning.
Todays race series double pumpers are far more superior performers than you could ever hope to make a 3 barrel. They wouldn't be to bad on a hot street car with a big engine though. I had best results on 440+ inch Mopigs with .550 solid cam, seriously shaved heads, and CH-4B intake. ------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
Professional Manwhore
The Barry of BarrysGrrl
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