You will be pleased with the difference! I leave the governers on my clones because removing them and doing nothing else makes them difficult to start, I add a spring to the governer arm spring to add tension under acceleration and turn the throttle stop screw out to lessen the effect the gov. has on my forward momentum! It works great for me and I weigh the same as you, I went a confirmed 40mph with a 66tooth rear sprocket and ran out of street! I have an ungoverned B&S 5.5 that took me to 45 so my spring trick for the clone gave me compareable performance with no trouble! See my thread in this section titled Piggyback ride