I only see AFR heads that cost about $1000 per side?
https://www.airflowresearch.com/180c...cylinder-head/
For your motor I would get the 64CC chambers with the 180cc intake.
Are you looking at a bare head for pricing?
If these are too expensive the Cast Iron Vortex heads are inexpensive (especially compared to ARF) and will give you more flow than any 202 head from the 60's ever though possible.
More information here on the Vortex heads.
https://www.motortrend.com/how-to/97458/
Real valve seals, like the heads you removed. Also takes the center bolt valve covers, eliminates 90% of the leaking problems from the earlier head perimeter bolt covers.