Fabricating an EGR pipe onto the KLZE IM:
Some states require emissions testing. The EGR (Exhaust Gas Recirculator) is one of the integral parts of reducing emissions. For those people who live in these state, you may want to consider fabricating an EGR tube that completes the piping from the head to the intake manifold neck. Here is an example of a KLZE IM modified to regain the function of the EGR.
I'm not sure whose car this is, but thanks for the pic. I think it was Fazdaze (on PT)
If you want, I could do a write up about it. I never actually finished the piping of the EGR since I ended up selling the ZE IM I was using as my project ZE EGR'd IM. I actually have pics of the initial mod process.
The basic thought is to tap a hole just to the right of the #5 runner. This should line up with the EGR port in the rear head. Optimally, the EGR pipe should run to a spot on the IM neck that feeds both the front and rear cylinder banks. That spot is located where there is a cast aluminum fin support on the outside of the neck.
There was some discussion on the materials to use for the EGR pipe. The best would be to use 1/2" aluminum pipe bent to the appropriate shape and then brazed/welded to the IM. Unfortunately, it's also the hardest to do. The easiest would be to use bendable copper piping (such as the easily bent plumbing copper pipe you use for refrigerator ice cube maker water supply) and JB Weld it to the IM. The copper piping is so easy to bend you could even make 2 tubes feeding the front and rear banks separately. You could also use one large 1/2" copper pipe as well. If you use phenolic spacers, the JB Weld should stay cool enough so as not to fail due to heat. (I think it's rated to 300*F) Paint the JB Weld and copper piping for improved aesthetics.
With regards to passing emissions, Da-ze (on PT) said he brought his car for emissions testing and he didn't have a problem with passing his EGR-less KLZE (full) engine.