Need advice on Oil Pump

I'm doing rebuild on my 72 340 engine out of Challenger. Engine will be basic stock for mostly stock restoration of car for mostly cruising. Going with 70 spec .030" over pistons for 9.4 cr and w stock J heads. Anyway the rebuild kit that I got has the High Volume Melling oil pump. Oil pan is original and only mod to block is that I opened up oil passages to 7/16" per Guitar Jones post. Question is will the HV pump cause problem w stock pan. Car won't be driven in cold weather, only summertime cruiser. Appreciate advice. Thanks