Actually, if it started better with the throttle held open some then DON'T pump the pedal before a hot start..... it'll just make it worse. I'd agree on a carb heat shield. Holley makes a composite one that sells for about $30 that is about 1/4" thick.
And OK OP on the ground condensation. Pretty normal, and the clean tailpipe sounds great; does not sound like anything is very rich at all. These cammed, carbed engines often will just not start like a modern fuel injected car so I would not consider the 'questionable'. My son's 340 starts better hot by holding the throttle open a bit. It uses a Holley 670 Street Avenger (4160 type).
BTW, OP what ignition system does your car have?