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-   -   ok to use same vacuum line for vacuum advance and tranny vacuum modulator? (http://www.hotrodders.com/forum/ok-use-same-vacuum-line-vacuum-advance-tranny-vacuum-modulator-6620.html)

brian400ex 02-19-2003 10:53 AM

ok to use same vacuum line for vacuum advance and tranny vacuum modulator?
 
I had to block off the vacuum port on my performer rmp air gap intake because it was in the road of my carb. So would it be ok to just use a vacuum tee and tap into my vacuum advance line?

slider in wa 02-19-2003 01:20 PM

No!! That same vaccum being used to advance your timing will be used to shift your tranny. Not good. Tee off fron some where else.
@ penny`s worth.
Slider in Wa.

brian400ex 02-19-2003 01:28 PM

I have one other vacuum port plugged off on the carb. It is a bigger port than the one i am using. Does it matter. Which one should i use for the tranny?

[ February 19, 2003: Message edited by: brian400ex ]</p>

72 chevy 02-19-2003 02:01 PM

You need manifold vacuum for the tranny, does the port you have plugged pull vacuum at idle? If so ,use it. Use the port that pulls vacuum when you open the trottle for the advance. :D

slider in wa 02-19-2003 02:25 PM

72 chevy said it better than i did. Let us know how it turns out.
Slider in Wa


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