[cleanspeed1]

I read some of the overseas mags and one of the best tuners out there is the guy that put the Emerald standalone computer together. One of the things that he was saying is that a lot of times when folks are mapping ignition curves, they don't add enough timing during cruise conditions and that can affect the mpg quite a bit and dulls the throttle response. You might be leaving a lot of power and mpg on the table and not even know it. Might be high time to get that thing on a chassis dyno and see where the old girl is at. By the way, you have a wideband O2 sensor on her don't you?

Big props on your Cressy. Brought back some fond memories. What differential do you have in it?