I need a broader powerband. I have a procircuit pipe/silencer combo. but i want to get a 144 big bore kit and get it port polished. Will this be a big power gain. Im racing 250 four strokes and my bike is just not cutting it. Will this give me the power to pass a 250. also are there any other cheap power adders that i could get, Im not looking to spend over $1000 all together. Thanks 