I have one, but if you recall, its quite a bit bulkier than the original walbro, even with all the choke interlock linkage removed... so much so, the engine needs to be moved forward about 5/16" - 3/8" of an inch... that screws everything up from the firewall forward... its not worth me redoing the cowl mounts... its already too long in the nose for a PA18, add another 5/16" - 3/8" and it will look like a turbo cub... I'll get this walbro bored out for the solenoid, just when I first drilled the bore hole, I centered up on the needles on both axis... then when I realized the 2 needles were a bit too far apart, when I bored the hole over sized, I breached the side of the carb body... So next attempt I will bore off center to the needles to give me more clearance on the side of the carb body... It doesn't matter if the hi/lo fuel circuits are off center in the solenoid chamber, as long as they are inside the solenoid chamber at the bottom of the bore hole.