Converting a engine is a fun job, if you like it, I have a Extra 300S 1/3 with a 3W 100, but I love my converted engines they are almost my sons, take a look to my site, is in spanish but a lot of photos.

http://www.hpignitions.com.ar/reform...lite_25_cc.htm
It was an adventure with great results 16x8 prop at 8500rpm.... good luck