Turns out this took a few months instead of a few weeks, but the engine is back in and I did the first run this past weekend! Between then and now I got the crank sensor mount modified for the new balancer, timing indicator made and marked, mounted and routed my new catch-can, flow tested my ancient 7M injectors, and verified the timing (good thing, I was 5* retarded!).
It didn't immediately grenade on the first run which is a relief, but it didn't exactly go smoothly either.
I pinched a brand new injector o-ring, so I'll have to go back and swap the temporary cheap rubber one I put in there.
I'd forgotten that my ignition cuts the switched +12 power (powering down the ECU) if I turn it too far into the start position, so we ended up bridging the starter temporarily until I chased that down with a multimeter a few days later. Seems like I'll have to replace the electrical portion of my key switch.
The EDIS firing order and orientation always throws me off so I ended up with Coil A and C wires swapped. I have them labeled now so that doesn't keep biting me.
I'm hoping all the cranking and misfiring cylinders didn't adversely affect my rings seating, but we'll see after the break-in cruise this weekend.
For the last week I've been working on finishing up QOL stuff like gluing in weatherstripping, finishing the 240z tail light conversion, replacing my crappy ebay steering wheel with a proper Sparco, adding a turbo blanket and downpipe wrap, and various other little cosmetic items. Full reveal soon!