Doesn't sound good.

Just had the '84 1.9 smogchecked and results were WAY out of line:

15 mph     HC 148     CO .79     NO   2156
25 mph     HC 96      CO .66     NO   1828

The tester was trying to tell me it looked like a failed cat (mine's 6
months old but engine has been misfiring for that time, too...)

New distributor, hall sender, wires, plugs, cap, rotor, hall control, coil
checks good. No vacuum leaks, AAR checks good, rebuilt AFM, all ECU pins
tests are good per Bentley.

Compression is good at something like 140. Normal power, no oil burning,
rough idle.

It helps the rough idle to disconnect the crankcase hose and plug the boot
hole up.

Ideas? Looks like the state of California will shell out $500 to help fix
it, but what to fix? Could pinholes in the exhaust cause bad HC readings?