I have never torqued the valve covers. Nipped them down, evenly in a torque pattern. No issues.
C'mon, you are loving it.
Just be thankful you don't have a track car. Endless jobs.
Alan

Let us know how it runs once you fire it up. I'm hoping it's smoother and well worth the time spent. I have a valve check session coming up soon. I have used back side method and traditional method, and even the Rennline tool. I think the traditional and the backside approach seem to be easiest in general.
Glad you are still enjoying the 930!

I thought about trying the backside method but access was nearly impossible with the engine in the car and the impossible contortions required. Just stuck with the traditional method and was able to do it with just one feeler gauge not getting toasted. I didn't really have to do this, just figured it was time. Found a couple valves that IMO were too tight, and a couple too loose. And gave me the reason to replace the plugs while I was in there...amongst a few other odds and ends.

16 days later, done deal this morning...then the ever present pre-start paranoia. Good news, she lit up after a few cranks but low rpms and couldn't handle sudden throttle. Had to adjust the idle mixture screw just a degree or two richer. No big surprise, given adjusted valves (nice and quiet) and new plugs. Let her warm up idling for 3 or 4 minutes, steady at 950. Next to check the timing. No test driving...keeping her up on blocks until I get around to pulling the right side CV axle and replace the torn boot and/or the joint as needed. And spin the wheel to listen to it's bearing and keeping my fingers crossed.

The bearing should be obvious if worn.
Wiggle the wheel, from top and bottom, while suspended. Any play suggests some wear. More than the slightest suggests on way out. The other tell tale is the rear brake pads - see how far canted over they are in wear pattern - tapered, top-bottom. I think there is always a slight bit, but if there is play at the bearing then it will be exaggerated. Compare to the other side.
Good luck
Alan

Congrats!

I just replace my CVs, both sides had torn boots.