PM sent. Going to give it a try.
Hi Neal. Got your PayPal for the $10 for two-way shipping, thanks. You should have it tomorrow.
Leave the O2 disconnected, attach the BoosterPlug in series with the Air Temp connector under the front seat, and tie wrap the silver end of the probe somewhere convenient where it gets decent airflow. If this were permanent I'd say to pull the left side plastic, insert the probe between the intake air tube and its extension and tie wrap it there but for this test I wouldn' go to the trouble.
With your pink cat code plug in, the O2 disconnected, and the BoosterPlug added, you will be running a cruise AFR of about 13.8:1 but running E10 will bring that back to about 14.2:1 (equivalent). That will put you nicely rich of stoichiometric. Since the Closed Loop program won't be running, there will be no fueling variation at cruise, you should have a good ride.
We'll be interested to hear how it goes.