yeah, go ahead and get the walbro 255 and it wont hurt to get a adjustable fpr. If you have adjustable cams, get a valvecover that has the gear spots cut out, it will pay for its self at the dyno. If you are running stock gs-r cams, upgrade to type r cams, cheap upgrade and it will give you more power on less boost. If you get the cams, get some cam gears. Be sure you have atleast half a tank of gas. Be sure you are not throwing any codes and your motor is good to go when you get to the dyno. These are the only tips that i can give you, and since i dont live in cali, i cant suggest.