Lets say i was going to chang one tooth on my sled.... will it be more benificial to change bottom gear or top. my f-5 seems to run out of gear not hp at 97 (i think). Would like to see triple digits on the speedo without sacrificing low grunt. any suggestions? Had been thinking about a 53/51 helix like f5snopro is running and a goodwin clutch kit. Have 102 1.175 studs and delta force 3 reeds. Need a little more to run with the 600s Need to look and sound stock. nothing radical. most of riding in tight and twisty but will run the lake occasionally.