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Re: 511 Indy tunnel ram which carbs [Re: mopar dave] #2723692
12/13/19 11:48 AM
12/13/19 11:48 AM
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central texas
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krautrock Offline
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central texas
here is an old old 440 dyno article with a tunnel ram and the 9379 carbs...

https://www.hotrod.com/articles/mopp-0109-440-head-buildup-dyno-test/

Re: 511 Indy tunnel ram which carbs [Re: mopar dave] #2723780
12/13/19 04:26 PM
12/13/19 04:26 PM
Joined: Mar 2003
Posts: 8,501
Rogue River, OR
Jeremiah Offline
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Originally Posted by mopar dave
A pair of those is $740 refurbished from Holley right now. They don't come set up for tunnel ram, so what changes did ya have to make IFR, air bleeds, main jet etc?


Pry open thy wallet mon:

https://www.holley.com/products/fue...efurbished_carburetors/parts/FR-80803BKX

Signed,

the guy who saved up for a Jesel belt drive since 2006 (lol)



Re: 511 Indy tunnel ram which carbs [Re: BradH] #2723788
12/13/19 04:56 PM
12/13/19 04:56 PM
Joined: Jan 2007
Posts: 6,806
Mt Morris Michigan
mopar dave Offline OP
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I just read about that a couple days ago. Seems the larger venturing flows less. I also read where someone bought an xp main body and it measured 3 different sizes out of the 4 boosters. Very poor quality control.

Re: 511 Indy tunnel ram which carbs [Re: mopar dave] #2723793
12/13/19 05:33 PM
12/13/19 05:33 PM
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Posts: 15,439
Val-haul-ass... eventually
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BradH Offline
Taking time off to work on my car
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Val-haul-ass... eventually
My experience w/ buying carbs & parts over the last few years has led me to believe the following: Every carburetor has the potential to be a piece of junk until someone goes through it and makes it "not junk".

Re: 511 Indy tunnel ram which carbs [Re: BradH] #2723797
12/13/19 05:40 PM
12/13/19 05:40 PM
Joined: Aug 2011
Posts: 2,018
KATY TEXAS
csk Offline
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Originally Posted by BradH
My experience w/ buying carbs & parts over the last few years has led me to believe the following: Every carburetor has the potential to be a piece of junk until someone goes through it and makes it "not junk".


THIS ^^^^^^^^^^^


[img]https://live.staticflickr.com/65535/49699175113_7f39889fbc.jpg[/img]87379033_2843330729058951_8904448720599252992_o by Charlie Keel, on Flickr
1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 3.54gear A518 OD 4100lb,11.04@123 full street car trim
Re: 511 Indy tunnel ram which carbs [Re: csk] #2723803
12/13/19 05:57 PM
12/13/19 05:57 PM
Joined: Jan 2007
Posts: 6,806
Mt Morris Michigan
mopar dave Offline OP
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I agree. That's why I have no problem buying refurb from holley.

Re: 511 Indy tunnel ram which carbs [Re: mopar dave] #2723822
12/13/19 06:38 PM
12/13/19 06:38 PM
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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BradH Offline
Taking time off to work on my car
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Originally Posted by mopar dave
I agree. That's why I have no problem buying refurb from holley.

Based on a refurb that I bought directly from Holley, that's still no guaranty it's right outta the box.

Re: 511 Indy tunnel ram which carbs [Re: mopar dave] #2723836
12/13/19 08:04 PM
12/13/19 08:04 PM
Joined: Nov 2003
Posts: 1,602
Pittsburgh,PA
RTSrunner Offline
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Has anyone tried the Demon carbs Street Demon AFB style carbs on a TR? 625/750/850 cfm

Re: 511 Indy tunnel ram which carbs [Re: BradH] #2723838
12/13/19 08:07 PM
12/13/19 08:07 PM
Joined: Jan 2007
Posts: 6,806
Mt Morris Michigan
mopar dave Offline OP
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Yeah, refurb is not for everyone, but I'm not afraid of it.

Re: 511 Indy tunnel ram which carbs [Re: mopar dave] #2724080
12/14/19 10:19 PM
12/14/19 10:19 PM
Joined: Jan 2003
Posts: 17,832
Akron, Ohio
ProSport Offline
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Akron, Ohio
I had a low deck M1 TR on my little 451 in my DartSport with Eddy heads and 590 purpleshaft cam. I ordered custom tunnel ram 750's from Quickfuel, car weighed 3050# and ran a best of 9.89 at 136.
Carbs were spot-on right out of the box and they had a wedge-shaped fuel bowl floats that were supposedly good for tunnel rams if I remember correctly. These days I wouldn't hesitate to order carbs from Dom.

3.jpg

Sassy Grass street Duster, best of 10.69 at 124 driven to the track with 3.23 gears, naturally aspirated on 93 octane.
Re: 511 Indy tunnel ram which carbs [Re: mopar dave] #2724170
12/15/19 12:24 PM
12/15/19 12:24 PM
Joined: Jul 2004
Posts: 19,144
State of confusion
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Thumperdart Offline
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Good luck to ya Dave............Billet is best period so to save a few $$$ here and there to have issues and inconsistency makes no sense and I've seen first had the variances from venturi to venturs on some cast main bodys.....

Last edited by Thumperdart; 12/15/19 04:23 PM.

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: 511 Indy tunnel ram which carbs [Re: Thumperdart] #2724187
12/15/19 01:48 PM
12/15/19 01:48 PM
Joined: Jan 2007
Posts: 6,806
Mt Morris Michigan
mopar dave Offline OP
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It all depends on what's left after the holidays money wise.

Re: 511 Indy tunnel ram which carbs [Re: mopar dave] #2724301
12/15/19 08:41 PM
12/15/19 08:41 PM
Joined: Jan 2003
Posts: 17,832
Akron, Ohio
ProSport Offline
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Posts: 17,832
Akron, Ohio
Originally Posted by mopar dave
It all depends on what's left after the holidays money wise.


I know the feeling! I've been working over 50 hours every week to get my Challenger upgrades done.


Sassy Grass street Duster, best of 10.69 at 124 driven to the track with 3.23 gears, naturally aspirated on 93 octane.
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