I have a Baha Dirt bug with a 6.5 Predator with no gov.How much top end will I pick up with a 60 tooth vs my 70 and will it kill my low end alot and make it shake on take off,or should I put a 12 tooth clutch in it and keep the 70 tooth,I drive it most on the street and some times at the big park with alot of flat grass.