I had about 10 core transmissions. I checked a few governors until I found what I thought would work, and it did. Honestly, I can't tell you what to put in there. The stock parte might work fine for you. A lot of times this stuff is personal preference.
I had a stock 73 teener with just a little TQ on it and the TTIs with dual 3 inchers all the way.Plus the TF'd 904 with a 2400TC and 3.55s. The 3.55s spun the D/S up faster and the shifts were too early, and out of range of the TV adjuster. I figured out that the flyweight in the gov was too heavy. So I put a lighter one in and that got it into the ballpark. Then I wanted it to automatically downshift in the corners at about 12 to 15 mph, with just a moderate amount of pedal, so I could power through, without downshifting manually. I already had the PT downshift upgrade, so I just fine-tuned the gov with a spring change, so I didn't need to use as much throttle,in a higher gear. After the change, it would downshift into 1st,with just a small amount of additional pedal, instead of a lot of pedal. That took the herky-jerky out of it. Then by lifting off the gas I could let 2nd kick in. You can see how this is totally a personal thing,right? My right foot is now smoothly commanding the up/down shifts with a corresponding amount of synchronized power delivery. That is the sweetest street tranny I ever built.
At the time I was doing these things(early 2000s), I never dreamed I would ever be sharing this info, and so, never documented anything. Whenever I didn't like the way a certain thing was working for my driving style, I just went after what I wanted, like a bulldog, until I got it. In about 4 years, I had everything bugged out (engine,engine tune,trannys,diffs,suspension/steering/brakes, etc), and after that, I just drove it.
