I have a vacuum gauge hooked up to the vacuum port behind the manifold. I am reading 14" of vacuum and using a 6.5 power valve. I talked to Mr. Sixpack(Bob K.) and he said I could bring it down to a 4.5 power valve.

[img]http://www.imgur.com/hxlGUJt.gif[/img]
4-speed
3:54 Dana
13.01 @107.93 with street tires (not hooking up)