Bill,
I can help you out with one of our MuscleDrive converters. Might not be more stall--It'll be the RIGHT stall and way more efficient. Raising stall is one way to get more power through, but there is a more comprehensive approach. Call or email with your vehicle specs. Be as detailed as possible.
For the governer mods, I'd give Mark Bowler a call.
http://www.bowlertransmissions.com.