I have posted the routing of the vacuum lines twice before, but here it is again for your secondary butterfly opening enjoyment.
"The routing of the secondary butterfly vacuum lines is from the center tap on the intake's rear plenum to the front (forward) tap of the black plastic accumulator tank. From the rear tap of the accumulator to the bottom tap of the solenoid. From the top tap on the solenoid to the "T" fitting under the idle air control valve. From the side post of the "T" to the rear bank secondary vacuum diaphragm valve and from the front post on the "T" to the front bank diaphragm valve."
I hope this helps.
<small>[ July 18, 2003, 03:15 PM: Message edited by: sdpatt ]</small>