@R Thorpe posted:Thank you. It makes sense. I have this air/fuel mixture measuring system from Innovate Motorsports I purchased it years ago to tune the fuel injection in my BMW 2002tii, it has a sensor fixture that goes in the tailpipe and can connect to a computer. The thought of going down the road with this setup is not appealing. I guess I should look for a dyno. Cheers.
A dyno guy can give you info on your A/F under many different speeds and loads. Good idea.