So when my 63 truck started giving me starting issues(the one I basically have given up on) I first pulled the dist. and bench tested it, I can get spark(weak), but after I install it on the truck I get no spark when turning it over, I know this because I put the timing light on it and turn it over with the key on, the timing light doesn't flash on any wire, keep in mind that I have all new everything, cap, points, condenser, wires, and these are OEM parts except for the wires.
So the first thing I would do is turn it over with the ignition on and see if you have spark while turning it over with the timing light, if you do, then you need to make sure you are on the correct stroke and not 180 out on the crank.
I don't know where you bought the rotor you have, but you should contact Tana and see if she has any new OEM ones left, here is her email address.
[email protected]
I wish you luck, when you figure out what your issue is, make sure to publish it here, maybe it is the same issue I am having, I am considering an engine swap myself, I have hours and hours into trying to start this engine and have made no headway and have not looked at it in months now.
You said it quit while it was running, were you there when it happened, did it just quit, or did it start jerking and maybe backfiring and then die?