I hear you. I've used it to get relative readings - one reason I think the cams may not be advanced enough. I haven't pushed it hard yet, but I haven't seen more than 5 psi. I did some intake port work on the heads, but I can't attribute a loss of 2 psi to better flow.... particularly since I still have the OE exhaust on it.

I've now enabled the MS knock sensor circuit and am about to calibrate the translator and go driving.

Frank