Thanks for the quick reply. To follow up... I've change the O2 sensor and had the CO adjusted. It runs well untill we have a change in the Outside Air Temp. It's like the fuel/air ratio is fixed; once it's reset it's fine untill another temp change of + or - 15 degrees.
How about the vapor lock? there's now fuel rail to keep the fuel circulating and cool. Would it pay to insulate these six fuel runners from the distributer to the injectors? Or am I off on this?
Is the fuel distributer govenor responsible for directly altering the mixture?