Marking the old perch positions was easy--they bottomed them in the front
Need to wait for the car to settle, but I basically raised the perches until the springs just stopped moving with the suspension in droop. Measuring at the pinch welds, I essentially leveled the car out--there's no rake currently.
20201001_162614 by Bryan Wyatt, on Flickr
To level the transmission, I took a section of 2x4 and stacked two Racing Beat sway bar blocks on top of a piece of wood that I jacked up to the frame rails. The 2x4 + blocks put me right within the spec:
20201001_125243 by Bryan Wyatt, on Flickr
Put it all up on a jack and torqued everything down:
20201001_124940 by Bryan Wyatt, on Flickr
20201001_125158 by Bryan Wyatt, on Flickr
20201001_125147 by Bryan Wyatt, on Flickr
I put some closed-cell acoustic foam in the fuel tank tunnels and zipped the roll bar bolts again with an impact. We'll see if that makes any difference.
20201001_150109 by Bryan Wyatt, on Flickr
20201001_150140 by Bryan Wyatt, on Flickr
20201001_150226 by Bryan Wyatt, on Flickr
I didn't include any pics, but I also noticed the nuts on top of my shock shafts were barely on up front. While the shocks were still in the car, I put the Allen key in and tightened the lower nut first, then put the upper one on and tightened it. I'm hoping that is the source of the rattle at the front.