Okay, It has been a big learning curve but thanks to all of you who have struggled with similar projects and shared your considerable knowledge and experience this one is finally ready to go. This will summarize my experience and hopefully save anyone else who is interested in using this engine some frustration and expense. It cost me more to do this due to experimenting with various carburators. In a thumb nail you need the following:

1. Lots of patience and desire to make it work.

2. one Briggs & Stratton 40cc, four stroke gas engine.

3. One 11mm Walbro WT (butterfly style) or ZAMA carburator.

4. one glow plug adapter.

5. one OS A3 glow plug.

6. one glow plug driver. (simple 1.2v rechargable battery and a switch)

7. Make an external pulse line.

8. mix pump gas and 33% nitro glow fuel for R/C cars. (1/3 nitro, 2/3 gas).

Here are some pics of what to do with the carb spacer/manifold. First you need to cut the (carb end) of the spacer off for two reasons, 1. get rid of the pulse slot, 2. be able to enlarge the hole to match the carb. I used a tapered grinding stone in my drill press. You don't want to go all the way through. Just deep enough to get the right diameter to match the carb. This will leave a nice taper from the round carb hole to the oblong engine port.