I have a 1995 yamaha wave venture. motor wvt700 t. Would a performance head really increase power and speed, it tops out at like 43 mph. I would like it to go 60 but i would be happy with 50 to 55. What do you recomend for higher top speed here is the link for the cylinder head. http://jetskijunky.com/store/yamaha-...-head-kit-1449