New 360 & a couple of questions

I’m doing the same thing in about a week. Isn’t there a way to verify your timing is right on with a test light? I don’t know how to do it.
You could do it with a points type distributor and a test light, though I forget exactly how. I have electronic ignition and plan to set the static timing at about 18* on the balancer and line up the pickup with the reluctor point for the for the #1 cylinder.