Hard Start questions

I picked up a new to me 2001 3500 DRW 6spd.

Having hard start issues. Downhill seems to start ok.

The fuel tank in the morning still has pressure. Is that normal? Isn't the tank supposed to breathe through a breather?

HAs been really wet here lately so diagnosing wet areas near impossible. Will look for all the usual places ie Banjo bolts etc.

Where is the rear banjo bolt located at the rear of head?

Thanks,

Art