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Old 12-19-2003, 10:44 AM   #3
70ChevyLongbed
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Join Date: Jan 2003
Location: Maryville, TN
Posts: 1,265
On my 1404 I have the driver side running to the Dist and the passanger side plugged. I was told that the passanger side could go to the vaccum for the tranny. The vac for the tranny on mine runs to a tree out of the intake behind the carb.

From Edelbrock Tech tips: "6. To select the proper distributor vacuum port on your Edelbrock carburetor, we suggest the following procedure to locate the correct outlet. Before removing your old carburetor (with the engine warmed up to operating temperature and idling), pull the hose off the port that routes to the distributor vacuum advance canister. After the hose has been removed from the carb, place your finger over the vacuum outlet. If, (at idle), you feel your finger being sucked in toward the carburetor, you have full-time vacuum advance. If you don't feel any vacuum pulling at your finger with the engine at an idle, you have timed/ported vacuum advance. "

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Jason
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70 Longbed, 307, Edelbrock Carb 1404, Edelbrock Intake 2101, Dual Roller Timing chain and gears, 214/214 cam, Comp Roller Rockers, dual Flowmasters.
1999 Chevy Tahoe
2004 Mini Cooper S
71 BMW 2002 - Sold
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