I am flying an RV-6A with dual AF-3400's, and have calibrated my tanks in flight configuration. Meaning I jacked my plane up until the longerons were level. During my initial test flights, I would only fill my tanks half way and the levels seemed to be correct. Now I have been flying with full tanks and when I land I get "check fuel computer" alert, and the gages do not seem to be correct.
Since RV-6A's sit a bit tail low when on the ground, should I calibrate my tanks while on the gear? Do you think this difference in attitude could be causing inaccurate readings on the ground?
Thanks for your input.