Re: Hard starting after shutdown
My 64 390/4v had the same hot starting problem. It wouldn't start without a long crank, and then sometimes pop through the carb. Got so bad that I'd wait at car shows to be one of the last to leave so other folks wouldn't hear my backfire.
Put on a new Holley. Much better, but on real hot days, it's still a little touchy when restarting.
Sometimes, it will start just by turning the key. Other times, I need to give it just a little pump on the pedal and then turn the key.
I can live with it.