Hard Starting After Warmed Up.....Arrrg

Hi guys, I went back out and unplugged the vacuum advance line from the dizzy. I capped off the vacuum advance line and the port on the carb.
I reset the timing(at idle 750-800 rpm's) to 12°.
I then uncapped the port and vac line. Put the vac line back on the carb.
I check the timing at approx. 3000 and it was around 45-50°. I revved it more and it did not seem to want to pull over 50°.
I believe I was misinterpreting the mechanical timing vs. the vacuum timing range in regards to the "total" timing. (my bad)
Motor seemed to run better and rev quicker.
However, I just got back from a 25 min. run on the car. So now I'm gonna wait about 20 and see if she fires up any better.
I appreciate the help.
Rob (RRR) did say to me before the motor could stand for more initial timing.
I am just trying to chase down the hard start issue.
Yeah.... I can get "non-ethanol" fuel. I'm going to put a fresh tank of it in and see how much that helps.