A bud at work offered his hot sports opinion - tell me what ya think. He said he thought she is running to lean and now that the weather is getting colder... I do have moderate blueing on the 1st 2 to 3 inches of the manifold so I know I'm running a little hot. And, on the way home from work (about 71 degrees, this am it was around 40) the hesitation was minor and then nonexistant but she didn't seem to be as responsive/quick as she usually is... I plan to pick up a K&N gas filter on Friday and attempt an install as well as a tune up on Saturday anyway. Thanks for the help! Bob