Many thanks for all the tips. TPS and timing are good. As to the pressure sensor, it's stock. I have a couple and have "experimented" with one which has the epoxy removed. Unfortunately in reading about how it functions, I'm just not saavy enough to figure out how to play with those adjustments (actually thought there were only two adjustments-the small center screw and the large travel limit plug). As to increased fuel pressure, that was a tip from this forum and it was the one thing that really made a huge difference in smoothing things out.

I may try the valve adjustments you suggest, as that can be easily undone. It doesn't have double valve springs. While I've used WhiteOut on the crank pulley timing marks, I will re-do that after first giving that quadrant a spray of flat black. Great suggestion. Wish I'd painted the whole thing as you suggest while I had it off to replace the front seal.