.
tri-power 2nd vacuum pod connection ?
Le Mans Master
Joined: Dec 2003
Posts: 5,727
Likes: 39
From: Fremont CA
The carbs you have have been "modded" by some genius. I used to Drag Race a 440 Six Pack Mopar, I think all 2300 3X2bbl Holley set-ups have 2 ports from the vacuum diaphram of the secondary carbs to the main body. One port is the vacuum source to open the throttle blades, the second (smaller) port is a "bleed" to allow the closing of the throttles to occur. I had great difficulty with my Mopar Tr-Power before the Super Stock racer Paul Rossi showed me how you plug off the bleed ports and install a real heavy return spring on the 2300 outboard carb mechanical return linkage to improve low RPM throttle response and earlier opening (I already had the lightest Holley springs in my carbs and was getting very frustrated with my set-up.) With Rossi's help my "6 Pack" became a 11 second strip terror to be respected (all on 9inch wide slicks.) Holley will sell 2300 diaphram housings to you if you want to replace them.
Safety Car
Joined: Oct 1999
Posts: 4,101
Likes: 10
From: NorCal
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 3,330
Likes: 13
From: Europe , Luxembourg
Hi
I took all 3 carbs apart , installed the rebuild kits and reassembled the correct way. The Vacuum pods should now be correctly connected and I hope, it will work fine.
How do this carb dates be read ?
Aft carb LIST 3659 , 1917
Fwd carb LIST 3659 , 1917
ctr carb LIST 4055-1 , 1647
I also found the primary jet sizes to be 63 and the 2nadry jet size plate to be -3.
Hope that is correct for the 435 HP setup.
Günther
I took all 3 carbs apart , installed the rebuild kits and reassembled the correct way. The Vacuum pods should now be correctly connected and I hope, it will work fine.
How do this carb dates be read ?
Aft carb LIST 3659 , 1917
Fwd carb LIST 3659 , 1917
ctr carb LIST 4055-1 , 1647
I also found the primary jet sizes to be 63 and the 2nadry jet size plate to be -3.
Hope that is correct for the 435 HP setup.
Günther
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Is this what you have?
3902356-EU
LIST-3659
873
3940929-EV
LIST-4055-1
8A2
3920359-EU
LIST-3659
873
63 is correct for the 4055-1 (manual tranny)
61 is for 4056-1 (automatic)
-3 sounds familiar ... I'll have to check my spreadsheet on that.
3902356-EU
LIST-3659
873
3940929-EV
LIST-4055-1
8A2
3920359-EU
LIST-3659
873
63 is correct for the 4055-1 (manual tranny)
61 is for 4056-1 (automatic)
-3 sounds familiar ... I'll have to check my spreadsheet on that.
Last edited by Tom454; Jan 22, 2007 at 04:09 PM.
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Hans.... you have mail.
Gunther.... you have mail.
The secondary metering plate is 34R-5113-3.
Holley discontinued the original a long time ago, but I had a commercial account directly with Holley and after many conversations with their techs, it was agreed that the 34R-5113-3 was the correct part.
Gunther.... you have mail.
The secondary metering plate is 34R-5113-3.
Holley discontinued the original a long time ago, but I had a commercial account directly with Holley and after many conversations with their techs, it was agreed that the 34R-5113-3 was the correct part.
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 3,330
Likes: 13
From: Europe , Luxembourg
Hi
This is what I have :
Both 2ndaries are :
3902353 EU
LIST 3659
1917
Primary is:
3940929-EV
LIST 4055-1
1647
I thought that the last 4 digit codes are the date, can't find any code with letters.
??
Thanks to your info I got by mail, at least it is confirmed that I have a late 69 setup for 435 HP manual with original primary and 2ndary jets.
Just wondering about the date codes.
Günther
Günther
This is what I have :
Both 2ndaries are :
3902353 EU
LIST 3659
1917
Primary is:
3940929-EV
LIST 4055-1
1647
I thought that the last 4 digit codes are the date, can't find any code with letters.
??
Thanks to your info I got by mail, at least it is confirmed that I have a late 69 setup for 435 HP manual with original primary and 2ndary jets.
Just wondering about the date codes.
Günther
Günther
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
5 Best & 5 Worst Corvette Daily Drivers
Joe Kucinski
The Headlights of Every Corvette Generation Explained
Joe Kucinski
5 Best & 5 Most Overrated Corvette Track Packages of All Time!
Joe Kucinski
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Up to about 1972 they had a 3 digit date code.
Later they went to Julian day plus year.... 4 digit.
Look here...
http://www.chevellestuff.com/generic/holley_carbs.htm
Later they went to Julian day plus year.... 4 digit.
Look here...
http://www.chevellestuff.com/generic/holley_carbs.htm
