Couple questions on parts

Alright yall we got a 1995 ls OBD1 with an auto trans. I am running pretty rich and would like an AFR gauge but I don’t know a good one to go with so if someone knows a good option that would be great. Also I just fixed my dizzy seal and noticed my dizzy cap is cracked on the bolt hole so if anyone knows a good brand or anything to fix that issue. Thanks guys.