My name is David, I'm new to the Model AA world. I haven't quite made my purchase but I'm looking at 1928 Model AA. I was hoping to get some good info on instruction guides, whatever would be the equivalent to a Chilton manual for it.
The Model AA I'm looking is up north in michigan and a little bit of a drive, owned by a 92 year old gentleman who's had it for 30 years, I've been told it has a worm gear on the back, bandits top speed is about 20mph like everyone I'd like to get more speed out of this to make it a little more useful

What are my options for getting more speed out of this AA? I've hear d a Warford overdrive could do that? Has anyone details or manuals on how to do that? If I put in a Warford overdrive do I have to delete the worm gear? Does the Warford Overdrive replace the old trans?
Any info would be appreciated.
I'm sure I'll have more questions
Thanks!
David