I have a 96 shee with vito's ss pistons, Trinity stage IV pro head, 21cc domes, Trinity 35mm CV carb kit, Toomey t5 pipes, K&N air filter open air box, Hinson clutch. I was thinking of having my jugs MX ported or buy V force reeds or is there something else I should do? I have $500 that I'm looking to invest into it that will make the most significant difference.