I finally got around to doing the conversion on one of my OS-160 FX engines, I am still waiting for the IGN to hit so I can't add the magnet and time it, but I think the rest is finished. The parts was some leftover materials I had on hand, Alum & delrin. I also went with the 1/4-32 plug for now I can always change it later if need be. The carb is from Davesmotors it is a WT-499 11.1 MM bore. I modified the stock hub for the magnet and put the pulse hole in the side and not at the rear like some I have seen.
I would like to thank w8ye for his input on this project the man knows his walbro carbs and much more.
If they will load here is what I have so far.
P.S. Just how does one turn the inlet fuel barb W/O breaking it off?