Man for such a nice looking car it sounds like the PO really neglected it mechanically. Glad you're making progress.Found the vac leak under my carb. Looks like it’s been there a long time. PO was more tolerant of rough idle than I am. Put a rebuild kit in the carb while it was off. Haven’t started it yet as valve cover is still off. Need to clean out valve cover baffle to make sure my missing pcv half-clip isn’t hanging out in there. Still need to bore scope cylinder 2. Head gasket on order.
I consider myself very fortunate with my purchase 9 years ago. When we pulled the engine 3 years ago to rebuild and add a little umph, the engine had never been opened up and by confirming date codes, was/am 99.9% sure that it was original to the car. YMMVLittle chance that a 55 year old car has the original untouched engine in it.