Re: Setting 6 Pack Carbs
[Re: 4spdana]
#2716627
11/17/19 09:39 AM
11/17/19 09:39 AM
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Joined: Feb 2006
Posts: 604 TN
1DGEMAN
mopar
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mopar
Joined: Feb 2006
Posts: 604
TN
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So lets get this straight. Is the 440 that needs the cam broke in a 6 pack? Have the carbs been rebuilt? Really the only carb that has to be close is the center to break in a cam. One would think that setting the carbs up on a 340 and then moving them to a 440 wouldn't be close. Like I said I doubt you will be breaking in the cam with the secondarys doing any more than idle circuits.
Real Men shift for themselves
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Re: Setting 6 Pack Carbs
[Re: 4spdana]
#2716635
11/17/19 10:33 AM
11/17/19 10:33 AM
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Joined: Jan 2003
Posts: 9,436 Blair County,PA
62maxwgn
master
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master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
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i was suggesting running each carburetor by its self on a different engine ( 440 has been rebuilt and needs the camshaft broke in) You can't run the end carb by itself on another engine,you have no accelerator pump or idle speed adjustment,anything you would try would be hit and miss at best.Switch them front to back as suggested by Cab,you may have to do more than once but eventually you get it. Also,read this!
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Re: Setting 6 Pack Carbs
[Re: 62maxwgn]
#2717233
11/18/19 04:11 PM
11/18/19 04:11 PM
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Joined: Jan 2010
Posts: 1,440 NW Chicago suburban area
Mopar Mitch
pro stock
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pro stock
Joined: Jan 2010
Posts: 1,440
NW Chicago suburban area
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I recommend the PROMAX six-pack base throttle plates... allows adjustment easily without having to remove the carbs... the way the factory/Holley should've done it.
Mopar Mitch
"Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers!
Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!
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Re: Setting 6 Pack Carbs
[Re: 62maxwgn]
#2717723
11/19/19 10:40 PM
11/19/19 10:40 PM
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Joined: Jan 2003
Posts: 6,840 The Swamp
Sixpak
master
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master
Joined: Jan 2003
Posts: 6,840
The Swamp
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i was suggesting running each carburetor by its self on a different engine ( 440 has been rebuilt and needs the camshaft broke in) You can't run the end carb by itself on another engine,you have no accelerator pump or idle speed adjustment,anything you would try would be hit and miss at best.Switch them front to back as suggested by Cab,you may have to do more than once but eventually you get it. Also,read this! Maybe the original 6 pak carbs were turned out a lot more than late replacement holleys, but mine needed way more than 1/8 turn from stock to idle well. IIRC fthe replacement end carbs come preset - 1/2 to 3/4 turns out on the hidden idle mixture screws. Mine idled best with all 3 carbs setting their mixture screws 1 5/8 turns out from all the way in. If I were doing a new set I'd start there, and do the 'finger over the air bleed' trick to see whether it's lean or rich.
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Re: Setting 6 Pack Carbs
[Re: Sixpak]
#2717748
11/20/19 12:57 AM
11/20/19 12:57 AM
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Joined: Jan 2003
Posts: 9,436 Blair County,PA
62maxwgn
master
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master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
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i was suggesting running each carburetor by its self on a different engine ( 440 has been rebuilt and needs the camshaft broke in) You can't run the end carb by itself on another engine,you have no accelerator pump or idle speed adjustment,anything you would try would be hit and miss at best.Switch them front to back as suggested by Cab,you may have to do more than once but eventually you get it. Also,read this! Maybe the original 6 pak carbs were turned out a lot more than late replacement holleys, but mine needed way more than 1/8 turn from stock to idle well. IIRC fthe replacement end carbs come preset - 1/2 to 3/4 turns out on the hidden idle mixture screws. Mine idled best with all 3 carbs setting their mixture screws 1 5/8 turns out from all the way in. If I were doing a new set I'd start there, and do the 'finger over the air bleed' trick to see whether it's lean or rich. I've found the amount of turns ( 1/4 to 2 ) vary depending on application,also any engine modifications changes the whole picture.
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