i have pretty much the same setup.. stock carbs, t5s , vforce3.. i went with jeff at fast. I dropped my motor off in person and bullshit with him for a few hes a great guy and went through every option with me... i ended up going with fast cool head , 20cc domes, dune/play port, matching case port, shift shaft mod, billet clutch basket, new top end. dont think i left anything out.. but anyway he answered all my stupid ?s as this is my first banshee and he also showed me some cylinders he was porting.. great guy! ill let you know how it runs when i pick it up and get it running.