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3 duce carb setup

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Old May 25, 2009 | 08:43 PM
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GAP
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From: Beachgrove Tennessee USA
Default 3 duce carb setup

Hi,
Guys me again, does anyone have a diagram or know where I could find the linkage setup for a 427 3 duce carb configuration. I also would like any spec's for adjusting the carbs for best performance. I think only the center carb is working during acceleration and the others are not kicking in through the vac system as they should.
Thanks, Gap
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Old May 25, 2009 | 10:06 PM
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400hp427vette
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From: North Bellmore Ny
St. Jude Donor '09
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http://tocmp.com/manuals/Carbs/Holle...C-SixPack.html
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Old May 26, 2009 | 02:25 AM
  #3  
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calwldlife
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St. Jude Donor '22
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63-67
adjust length of throt link to ensure full opening of throttle plate.
turn threaded swivel at the throt so when pedal depressed the butter fly is full open and the threaded swivel will freely enter the throttle lever.
then turn swivel 2 full turns to lengthen it.

68-72
loosen cable clamp bolt at bracket
press throt pedal full open and block it to hold full depress
Open carb full open(butterfly) and tighten hold down bolt to 45 in lbs


trip deuces 67-69

start and bring engine to op temp
set idle
turn motor off
Bottom the clevis pin in the throt slot of the prim carb
adjust sec closing rod of rear carb so it lacks (short) 1/2 a rod dia long enough to freely enter the sec throttle hole. connect the rod

adjust the front sec rod so it barely enters the throttle lever hole
and connect.

check linkage operation to verify plates(butterflies)close completely
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