We filled both tanks to the 16 gallon level for calibration of the EIS fuel guages. Getting close. We then rolled the plane outside and fired her up. All temp and pressure guages functioned as they should. I took it up to 2080 prop rpm. There was so much thrust that Russ said the legs were flexing. I coarsened up the prop and it cropped the rpm as it should. I am very pleased with this test today.