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Originally Posted by Adam
Have you looked into getting a ECU tune or reflash? Contrary to what some people think you don't need a dyno to an ECU tune. There is a local guy here that has a program on his laptop that he just plugs it into the OBDII port and downloads data while the car is driven on the road under various loads and then can adjust ignition timing, fuel air mixture ect. A buddy of mine with a highly modded vette had this guy tune his car and he said he noticed a significant improvement. And the nice thing is it's probably going to be way cheaper than say a REVO or GIAC flash that only gets things in the ball park and isn't specifically designed for your engine's needs. I think he tuned my buddies car for virtually nothing.
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A rolling ECU tune is better than a dyno tune. You can drive under actual road conditions and really get the most out of your software. Far more useful than either a dyno tune or off the shelf chips. And you have a guy who does this for free??