No, you need to dial it in "NOW". You don't know how much timing you have in that engine and incorrect timing can and will cause engine damage so it's time now to get it right. Why on EARTH would you not? It's a five minute job.
Thank you. I didn't want to keep being the jerk.
Rotate engine until the score on the damper is where you can get to it, possibly on the bottom.
Clean the Bejeezus out of it.
Mark it with some chalk or contrasting paint.
Remove the timing scale (I forget whether it's one or two screws).
Clean and mark that, too and reinstall.
Can you STILL not see it?
If not, rotate to TDC.
Make a mark on the damper and some thing adjacent somewhere you CAN see.
Use that as a guide as you advance to "too much" and then retard to "just right."
A dial-back timing light would be helpful here.
(I find it impossible to turn the distributor the exact same amount every time, so I need a reference to see where it ends up when I tightnen it down).
– Eric