[Mr70]

Be it Camaro or Corvette,they used the common delco #D308R cap,also known as GM #800061.That's the one w/o the copper inserts and has DELCO-REMY PATENT 2769047 R raised on the top of it.No specific date code on the caps themselves,but the original boxes they came in can be,on one of the inside flaps.
They also used/shared the Delco #D112P point set,#D204 condenser & #D409R rotor.