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accurate, something is amiss (Great, thanks for the help Mark!). If your stock boost guage is pegged, I'm pretty sure you are making at least 14 psi. If the cats were plugged, I don't think you could make that kind of boost. As you noted, you are running a little lean, a boost leak usually results in a rich condition, as it lets metered air out of the intake system, but the injectors don't "know" that, and introduce fuel consistent with the MAS reading. A 12:1 A/F ratio is a little lean for a street tune, but should actually result in a little more power than what the folks that modify the ECU set up their standard A/F ratio to be (usually between 11.5-11.8 to 1). I wouldn't add anything else to the mix (modification wise)until you get this (low power) straightened out. I'm wondering what shape your engine is in in terms of compression and leak down numbers. A healthy stock Z32TT should make about 250 rwhp, so you've got something taking about 100 rwhp away (asuming around 14 pounds of boost). Does the car seem to pull OK? If so, are you sure the dyno is giving you accurate numbers? I'm not the best diagnostician in the world (let alone on this board, so I may have overlooked something obvious), but if those numbers are accurate, I'd check the integrity of the engine with a compression test. Hope that is of some help, Mark
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