Ok it's been a few weeks, 800 miles and I have to report that my MPG has increased to almost 16 with all city driving. Not bad from less than 11. Coming up on Oil change and will be sending a sample to blackstone to set a baseline.

I do have one issue that has popped up in the last week, I now have a pretty rough idle whether cold or at temp. Almost like a miss or a stutter. It's not throwing any codes and anything above idle is smooth. About the only things I haven't swapped out in my search for better MPG are the coil pack, Crank position sensor and the Cam position sensor (on top if the Oil pump crank shaft). Would either one of those affect the idle?

My idle was like that when I needed a cap, rotor, and spark plugs.

coil, that's the next on my list. just because it's working, doesn't mean it's right

New coil pack came in today. I'll put it on this weekend and see if that takes care of it.