This is my first year in the Pro/Expert ranks and I've done pretty well in two races so far. But since I am bigger than the average rider (220lbs at 6'4) my powerful 4stroke is only keeping me even with the playing field. Last year on a 2001 YZ250 a KTM125 could run with me on a straight. This year on the 426 I was dead even with a CR250 on the straight. I am thinking of changing the gearing to allow me to get in the higher gears quicker, but what else can I do to get more power at a reasonable price.