Yes, I will vouch for Midwest Diesel - calibration of our pump, labor, and some gaskets and seals came to around $160.00. CHEAP compared to our original plan to turn the screw up - that would have given her more power but wastes fuel. Governor was our problem. I will also add that at the harveting rate I mentioned, we still had reserve capacity. Could've shifted to 3rd gear but stayed at 5.5-5.7 mph to do better job at the head. We like to pick up as much down corn as possible and even at these speeds, it taxes a persons reaction time. Maybe we'll have to hang a twelve row out front..! Tom langan