[A Cobra guy]

Perry,
What do you mean by "Hooped"? The Ox. sensors are fairly new (Less than 25,000 miles) but are black due to the rich condition. The car runs worst at mid temperaturs. I have checked the voltage at the engin temp sensor and it seems to be within specs. Could it be too much fuel preasure? I have an adjustable unit that seems to be keeping the preasure pretty high. Since the engine is so stock I think perhaps I should go back to a stock regulator.

I am thinking about switching the intake over to a Mass-Flo system by Quality Roadsters. Before I do that I want to get all the other sensors sorted out to reduce variables during the conversion.

Harvey