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Join Date: Jan 2003
Location: Palm Springs,CA
Posts: 371
dist. to throttle body vac. lines

1980 911 sc, there are two vac. ports on the back side of throttle body, one above the butterfly and one below. one has alot more vac. at idle the other has slight vac. also theres a port between the air box and the CIS intake boot [WUR ?] which goes where in relation to the dist.i dont know which connection is advance and which is retard on the dist.

Old 06-02-2003, 06:08 AM
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Join Date: Apr 2003
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Just to take a stab in the dark due to logic. Your ignition should retard due to load, meaning that if the intake pressure goes from vac, to atmosphere, your on WOT. So this would tell me that you want the retard side connected to the one closest to the intake, and the advance would be the other one. But i'm not sure so don't take my advice too seriously.

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Old 06-02-2003, 06:29 AM
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