My trip to the track...

It seems to like the total number in the low 40's, not necessarily the initial number (harder to start).

Add some mechancial advance back into the distributor so you can keep the starter from straining and dial in the total timing it needs.

Have you jetted up at all?

What was the DA?

It's losing about 2-3 tenths in the first 330" which is probably the vac carb.

Nice work, it's coming around.