Stop in for a cup of coffee

Redid my buddy’s brakes, and replaced master cyl with a rockauto replacement. Manual brakes. No mention of power brakes anywhere. Not thiniing to check, its for power brakes, bigger bore. Super hard pedal.
Now i think i should hunt up a brake booster. Maybe better off that way anyhow. S-10 or firebird, or just the 97 chevy. Not sure. I need to start parting out these cars and doing a scrap haul.