i have a 89 xf falcon ute stock 6 cylinder 4.1 3speed auto, carby engine that i only run on lpg, it starts on gas no problem at all range in alright it idles good, but just no power or accelaration and doesnt rev that hard at all, its not to bad once you get over 80kph but getting there it just takes foreva to get there, my kick down cable is disconected at the moment which i know is not ideal but i can still change the gears myself and didnt think it would affect it to much, the plugs and leads look alright and ive looked over the hoses and pipes roughly but nothing sticks out, any suggestions would be good cheers