2002 GMC Envoy Mileage Help

[FMPRO]

I am submitting this file for anyone who wants to help me. This is a stock file and I need to lean it and get performance out of it. If someone can do that the way I need it, you are appreciated. I am new at this and am in the learning process. Still learning the tech terms. Please let me know if you are interested. I am adding HHO Gas to the air box with many dryers and filters so I don't get any caustic problems. I am only looking for help on the tune. I do understand that many of you don't like the HHO gas. I am just looking for a proper tune. (map adjust, timing, afr etc...) I am also not looking for any guarantees. Thank you, My email is [email protected]
Keith

[FMPRO]

Is anyone there that knows how to get an economy tune? I sure could use some help. I am sending for the tuning school but for now I could use a lesson. Thanks
Keith

[justin99]

I have an economy tune I can email you.

[FMPRO]

That would be awesome

[justin99]

Keith, let me know how it turns out.