As noted in another thread, LTH on top of all the other breathing mods finally really did in the stock tune. It still pulls decent from about 3.5K up, but the lower end of the rev range gets atrocious once the engine is heat soaked. It's just so badly out of whack on A:F ratio and timing for this setup now.
So I'm headed to
Secret Services tomorrow (Friday) morning for some UpRev tuning on their dyno, we'll see how everything goes. At the very least they should be able to fix up my A:F and timing, I want to talk them there about if or what they can do with the throttle response and transmission line pressures too.