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Originally Posted by JamesJ
I assume the GM style has two lines just like the ford? I was going to run one line to the plenum, and the other inline, post air filter before the intercooler.
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If you are talking about an IAC, all you need is a hole somewhere after your throttle plates. The system can then control how much air to bleed in during idle. Here's what mine looks like. It takes a standard GM IAC. Air enters through a copper filter (on the bottom) and flows past the cone shaped pintle that camcojb mentioned. The upper photo shows the holes in the throttle body, and the lower photo shows the IAC after it is installed. The brass unit next to it measures incoming air temperature (IAT). The throttle butterflys are to the left in the lower picture. The lever is the throttle lever.
