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  '64 1/2 to '73 -- The Classic Mustang
  Vacuum line routing and 4300 port ?

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Author Topic:   Vacuum line routing and 4300 port ?
68 S-code GT
Gearhead

Posts: 1129
From: Sayreville, NJ, US
Registered: Mar 2000

posted 06-25-2002 07:32 AM     Click Here to See the Profile for 68 S-code GT   Click Here to Email 68 S-code GT     Edit/Delete Message   Reply w/Quote
I have the small block running in my coupe but after looking at the 68 shop manual Iím starting to question what I did! I have the stock dual vacuum distributor and only hooked up the vacuum line from the carb. I installed a chrome water neck so I donít have the temperature valve. I didnít think I needed the extra advance to cool the car if it got hot and just capped off the appropriate ports! Is this right?

Another question I have is that the 4300 carb has a port on the upper backside of the carb. What is this for? I have it plugged right now!

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68 S-code FB GT 4spd(now C6)/3.25 PS PDB
68 J-code(now 289) Cp Sprint"B" C4/3L00-9" PDB PS AC
99 F150 XLT Ext/cab, 4X4, 5.4L, 3L55
95 Explorer XLT with the works! (Wifeís car)

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Moneymaker
Administrator

Posts: 19751
From: Lyons, IL, USA
Registered: May 99

posted 06-25-2002 12:20 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
You should only use the primary chamber for the advance. The rear port is for a valve in the original air cleaner assembly.

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Alex Denysenko
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68 S-code GT
Gearhead

Posts: 1129
From: Sayreville, NJ, US
Registered: Mar 2000

posted 06-25-2002 11:33 PM     Click Here to See the Profile for 68 S-code GT   Click Here to Email 68 S-code GT     Edit/Delete Message   Reply w/Quote
Thatís what I was thinking but the shop manual has the air cleaner one from the intake!

Thanks

quote:
Originally posted by Moneymaker:
You should only use the primary chamber for the advance. The rear port is for a valve in the original air cleaner assembly.


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