Distributor refresh gone wrong

Okay getting back to the point here.

I also did a distributor swap recently and I'm a relatively advanced home mechanic. We could not get this thing to fire correctly.

It turned out that I needed to have the extra adjustment of the lower bolt on the bottom of the distributor. Even though it wasn't required for the old distributor the new one really needed it for me to get this thing on point.

I ended up buying the 7/16 distributor wrench specifically made for slants and I had the thing timed in about 10 minutes with a timing light.

You need a timing light and I'll venture to say you're probably also need the distributor wrench.on the older cars like yours it's actually easier to reach the bottom distributor bolt on an early car like my 64 it's impossible to get from the bottom without three u-joints and an arm shaped like a snake.
Something to note about my distributor is that the correct replacement rotor is different than the one that is on there now. The replacement rotor won't even slide over the notch to seat correctly, so there is something fishy going on. But I'm just going to put all the old stuff back in and put it back to exactly how it was.