I'm finishing up my LT4 hot cam install, and converted to the vented opti. Where does the harness go. I got a small fitting, not sure where on the intake it goes. And i think the blue elbow on the vaccuum harness goes into the rubber elbow at the throttle body. Is that right? Anybody got a picture of the harness installed? Thanks

 

You are correct about the blue elbow. The thin rubber hose connects to it. The fatter rubber hose with the restricter and check valve connects to the intake manifold to draw vacuum. On my '95 there is a fitting with a nipple to the right of the PCV valve where that one connects. Maybe your '94 has a plug there, don't know. If not, I don't think you want to drill and tap your manifold for the fitting you say you have. I would get a T-fitting and tap into a vacuum source that's already there. This is the only picture I have.

http://csce.uark.edu/~jgbertr/rb/pcv.jpg

 

A couple more pics . Like anaik said, you can use a short piece of vacuum hose and a tee off the EGR vacuum line for your opti feed.

 

Well, i got it figured out and i would like everybody to know. First off, you need two more parts. GM P/N 12551389 and 12556257. These are the PCV hoses for the 95-97 f-body. Remove your pcv fitting from the manifold and remove the little plug under the throttle body. Thread the pcv fitting under the throttle body where you removed the plug. Then thread in the plug that comes with the opti conversion into the manifold, where you removed the pcv fitting.
Install the hose for the opti and the pcv valve and your done. I couldn't find this info anywhere. This works for the 94 Camaro, not sure about the 93! thanks for the help guys
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Good going, glad you solved the problem.

 

Really no need to over complicate things and run up a bill on PCV hoses..... buy 2" of vacuum hose and a "tee" and hook it up to the same port as the EGR vacuum line.

Vented Opti connection on a 94

 

Yeah i thought of doing the tee, but the hoses aren't that much and makes for a neat job. I'm kinda a perfectionist, course that get me in trouble sometimes LOL