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Robert

thanks for the response. I will perform the other 2 EGR test. I've got another EGR from a friend but I was thinking about buying a new EGR anyways.

Would porting/eliminating the EGR tower in the lower/upper intake skew the numbers? How does the EGR system work... there is the EGR valve that opens/closes... somewhere, gases get passed from the intake to head or vice versa!!!

Well, I've been looking around for a "friend of a friend"... but a number of shops got busted recently doing "magic passes" so I think everyone is laying low right now!!!

thanks again... dave