If the 2.02x 1.60 valves are perfect condition
and decent. (Manley) you could buy a nice set of Bare PROFILER r
176 series heads or bare Brodix IK200 heads and install your valves etc and have a decent set of powerfull heads.
SBC 23 Degree Cylinder Heads
210 cc port 64cc for a 10.5:1 N/A motor 72cc for a low cr blower motor.
ONLY if the valves you got are in perfect condition.
Both these heads make for a very good base for a strong SBC.