TransGo Shift Kits: TF1 vs. TF2 ...Whats the difference?

[Surf Charger]

Trying to get an idea of the difference between the two?

I have a driver w/ 383 4-barral and mild cam/headers. Plan on buying the TF2 due to so many recommendations but just curious what the difference was between the 1 and 2?

[John_Kunkel]

The TF-1 kit is more street/tow oriented while the TF-2 is street performance/race oriented. Oh, and about $10 difference in price at Summit.