I finally found through the search function
a very good link.
My heads are not 202's.
which indicates to me that they are:
Large chamber (76cc), hardened exhaust valve seats, compromised intake port(‘71-’76 350/400cid), best of lightweight heads casting number 882.
I measured the intake valve at 1.94" and the exhaust valve at 1.5"
Since I have identified them can some one with good head knowledge put this into perspective for me, are these good heads, what kind of HP (potential) can I expect (ballpark) ??
76 c.c. is that good??
Any help form those with more knowledge than me is most appreciated.