I don't think we have a valvetrain issue, at least I don't see or hear any signs of it. Torque peak is probably closer to 5300 than 5700. The last report I ran said 5700 but when I look at the numbers it looks like the peak is 5300 and then 5700 just had a little spike which might not be real.

Intake manifold vacuum starts to go back up over 6000 rpm so I think that is what I need to focus on first. Not sure if I'm running out of air or if the gauge is getting wacky on me.