73 360 Ignition timing after Chain replacement

I suppose the set I have could adjust +4 or -4 degrees If I wanted to reset it all. But since it's running well, I don't see the point in pulling off the cover....spending money on degree wheels and $40 on new seals to reset it. Plus, in my experience, you never get quite as good a seal when you replace the cover with Oil pan in place, as you do when you put cover on first, and then install the pan like I did with engine on the stand.

Your advice has given me quite a bit to research and ponder. I've got a buddy whose 318, '88 d-150 just crapped again.......might be a plastic tooth chain issue, so I will get a chance to mess around with Cam settings again soon.

That's very correct. The "by the book" method requires oil pan removal to remove the timing cover, but very few people do that and again correct that resealing the timing cover is difficult with the pan in place....although it can be done, it's a prime place for a leak, for sure!

I'll put it to you this way. Between camshaft timing and ignition timing, you can tweek both and if they are out significantly, you can add 30 HP real quick. That's a huge difference foe essentially "free" work. It sounds like your is running good though. At least good enough for you and isn't that all that counts?