That is exactly the documant I was going to link you to.
And yes it works. I did it on my 1930/6 and made it a 1930/10 for a while and ran it in a 1/8 buggy on 5s and a Quark 80B. Ran like a champ, but just a little to small of a motor in the long run for the 1/8 buggy. Should haul a .5 around with some authority though.