I had good luck with International Fuel Systems in Findlay, Ohio based on previous comments here.

http://ifsinternational.com/

They have a route of places they service down this way and it was a snowy day and the guy stopped here and picked mine up. I drove up to pay for it and pick it up when it was completed. I was well pleased with the service and results. Had the usual disintegrating governor flex ring problem on a Case 1845 skidloader.