The dwell is at about 26
Can't be. The dwell spec is 47º ± 3º.
All those tests where you scored 2000 ppm HC, the real value was much higher. At 2000, you've pegged the meter.
Your engine size is listed as 1.7 liters. Since a 62 originally came with a 1192cc engine, you should tell them to change the size to 1.1 liters. Aircare allows you to truncate the engine size. By changing the engine size, you gain a small bit of headroom on the cutoffs. It's not much, but it's a legitimate change.
Don't use high octane or any other snake oil treatment, they don't work. Same goes for dumping methanol in the tank. Just use regular gas.
Your driving CO% says your idle jets are the right size.
Your idle CO% says you have the mixture screws set right.
I suspect you have a misfire. If your car does one single misfire on the aircare test, it will blow the HC off the map. I bet you have the chronic idle-on-two-cylinders problem. A good way to tell this is to use one of those infra-red temp guns. Aim it at each exh pipe as the engine's idling. If you find one or 2 cold ones, there's your problem.
What is your timing?
