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Old 10-02-2011, 11:32 AM   #1
68 Coupe & 69 Coupe
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Default Distributor vacuum control valve----help!

Looking for help! I am on the last steps of wiring the newly finished 200 6 cylinder in my 69 coupe. Everything is going well except that I am doing the vacuum lines. The only issue, is that I have a dual advance distributor. In order to do the vacuum lines correctly through the distributor vacuum control valve (at the thermostat housing) one of the three ports at the control valve gets capped with a filter. I can't locate one anywhere!!! Capping it isn't the right thing to do as it needs to breathe to operate properly. Any help????
Always one more thing to do!

1968 289 Coupe
1969 200 Coupe
1989 25th Anniversary GT convertible

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Old 10-03-2011, 08:51 AM   #2
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Run the vac line for the breather to the air cleaner inside the filter area.
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Old 10-03-2011, 10:33 AM   #3
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The rear retard vacuum line never worked well as an emmisions device in the first place. My recommendation is to plug the rear line and only use the front advance line on the dizzy. For appearance purposes, I'm using the dual vacuum port as from what I can tell, the 351W manual cars with AC received them. I hooked up the lines per the factory routing, but I plugged the rear line to make it non functional.

I'm not familiar with the routing of the vacuum lines on a I6, but on a V8, the bottom port of the vacuum switch goes to manifold vacuum, the middle port goes to the dizzy (front advance port) and the top port goes to the carb's ported vacuum.
408 Windsor, port matched Torker II, 735 cfm 428CJ carb, Comp Cams Hyd Roller, AFR 205s, 1 3/4" Accufab headers, 10.1 to 1 SRPs, Centerforce Dual fr clutch, Tremec TKO, 31 spline 9" w/3.70 Trac Lock, 3" chrome moly drive shaft, Comp Eng slider traction bars, sliders on rear leafs and 2.5" Magnaflow stainless exhaust.

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