i took my truck to get it retuned after changing a few things. my pumps are going bad. runs good till high rpms then leans way out. and i was wondering what ones to go with. i was thinking the walbro 255lph or the ford GT 300lph. i dont need ne thing that big yet but i thought if buy them now it will save me from buying them in the near future. ne help would be appreciated. thanks