How much does he weight? I'd recommend following the Munson Plan, which you can find in multiple locations on here via the search option. I myself don't follow it exactly, since I only have two snakes and buy in bulk, so I'm usually finishing off a bag of smaller sized prey items by doubling them up before moving up a size.
As far as being super active after eating, I'd check the temps in your viv, they should be in the mid 80s on the warm side and in the mid 70s on the cool side. That is the temperature of the glass above the UTH, not the temp of the air or substrate. If they are too warm this could cause your snake to by hyperactive. If the temps are good, then I would wonder how much he weighs and how many pinkies you fed him. He could still be hungry. Or he's just getting used to the viv. People on here usually recommend waiting 7 days between acquiring your snake and handling or feeding. Let him hang out for a few days, make sure he has pooped and that it looks normal...
Definitely check out the munson plan, its your best bet as far as prey size goes. Hope I was helpful.
Cheers,
Chelsea