1970 Dodge Dart 318 upgrades

Hi all, I am playing with thoughts of upgrading from a stock camshaft to something that is a nice streetable upgrade for an entirely stock engine, highway gears, and exhaust system. I am still learning so I'm not entirely familiar with the specs and technicalities of camshafts so I'm not sure what I should be looking for. The engine is currently out of the car for a rebuild so figured now would be the best time to do this. I will be sticking to the stock two barrel carburetor as well untill I have enough funds for a four barrel swap.
I was thinking of a mild cam like this COMP Cams 20-210-2: High Energy 260H Hydraulic Flat Tappet Camshaft Lift: .440" /.440" Duration: 260°/260° RPM Range: 1200-5200 | JEGS which was suggested by a friend who definitely has way more knowledge on this stuff than i do. I realized i did not include this part which is a blunder on my end, sorry.
but how would something like this cooperate with my current set up as a slight upgrade over stock and a stepping stone for future upgrades and would I need new valve springs.
thank you