[Hurst65]

Originally Posted by geeteeohguy

When you get off the gas to shift gears, emissions will increase a bit. This is normal. In the '70's, a lot of stick cars had a decelleration valve to delay throttle closure just to reduce emissions. You don't have that. I would NOT pay any attention to your AF ratio except at idle or at steady cruise, and only after cruising for about 30 seconds or more. Ditto with idle. It takes about 30 seconds for everything to stabilize for an accurate reading. If you can get a steady 13.5-14.5 AF ratio at cruise, you are there. 14.7:1 is the magic number, and is the ideal stochiometric air/fule ratio all cars are calibrated to run at these days.

Hummm.... interesting... If I could get my cruise reading up to around 14.5 - 15.0 I would be a lot happier. But as of now, with the 63's, I'm right around 13.0:1.