Never had any actual work done by them, but I've bought a lot of parts from him. His kits to convert an original Tri-Power to dumpers are the bomb! His progressive linkage is also first class. I currentlyhave his kit on my 55 292 with the Holleys, and 2 Chevy's with the 2-G's. All work great with good mileage and performance, along with the cool factor. Highly recommend them