When I finally found where the spout connector is

I measured my base timing and it was 8°. I considered bumping to the recomended 10° but declined since I run 87 and figured the extra saftey factor would help.
Probably the #1 reason for the pinging is carbon buildup, followed by dirty injectors or mis adjusted fuel pressure, General tuneup plugs rotor wires cap etc dirty air filter, all play a part too
Also the 10° BTDC setting is considered "nominal" and maybe my 8° is correct also!