"Did you get the sound deadening material off all the floorboards?'

It came up easy with and air chisel


"Have you figured a way to bypass the air flow meter? That appears to be the weak link in the track."

No legal way to do so under the IT rules.

"On the hydraulic lash adjusters... can you increase oil pressure to them? That would hold them up for higher RPM.'

Up to a point. The regulator is not adjustable. You can tinker with the spring in the regulator to change the pressure but is a best guess type of deal. Also it becomes a flow rate problem as much as a pressure problem.

I can give you the name and number of the retired Toyota mecahnic who did the build on my engine if you like. He can explain it better.