Exactly. Pre- 1966 is exempt, 1966-1995 get the sniffer, and 1996 and up (OBDII) get a computer check. Sometimes they will visually inspect for cats. Sometimes.
I'm definitely going to wire in an OBDII plug, but I don't think that will matter. I'm pretty sure if the chassis vin is for an '84, it has to pass the test assigned to an '84. At the end of the day, they just want their $12 every year. Crooks.Wonder if you tell them it's OBD2 compliant if they will hook up instead?