much beddah:
"driver's ", "passenger's" sides~
'L' & 'R' can B misconstrued frm frnt of motor rather than used appropriately frm sitting in vehicle.
again, header flange has been shaved for those wanting a/c (& showing a bracketry change).
See tech archive by CI as they wrked around THAT prob yrs ago. May B something (related more distantly) 4 ya there.
I have pic on other 'puter of the bracket I welded up 2 put PS on a bronk i6 (never available oe) if interested...