Originally Posted by bucky919
I don't know where your getting your numbers but:
stock xfire 600=118 horsepower
stock xfire 800=142 horsepower
stock xfire 1000=162 horsepower
i was thinking the same thing. to get 24hp your looking at spending at least 2grand.
i dont know much about efi, but if i were you, i would get a clutch kit first, then a performance head with trail domes to run pump gas, then full exhaust. that right there is about $1000 for 10-15hp plus better clutching.