[thorconstr]

Bernie, I am the TWM dealer on this site. I have had a 58mm setup on my Kirkham for 11,000 miles. It has been trouble free with great performance and the one time I checked mileage for laughs I was surprised with 12mpg. I was surprised because I have my foot buried in the rear injector most of the time. If I can help you out feel free to call me on my cell 520-401-9142. I will give you as good a deal as possible. Thanks, Al