Blower (kenne bell) goes on tomorrow or fri. I have had the 4:30's for about a year and they worked fine with the 75 shot but i never sprayed off the line. I still dont click off great times for a 60 ft but i was gettin 2.0's on some 245's. Not to bad. so should i go 4:10's or 3:73's now? I love the gear but dont know how well it will work with almost 400 HP all the time.