Just a follow up on this. I ran a local Mopar race here in Tulsa on this past Saturday. I made 6 time trials trying to get my head right with the tree(without much luck).
1/8th
6.623
6.617
6.633
6.627
6.623
6.615
1/4
10.500
10.486
10.528
10.494
10.502
10.476
We started off with really good air of about 200ft and ended the time runs at about 950ft. I had a little trouble pushing in the beams so a lot of the variance was likely roll out. I didn't touch the tune in the car all day.
This is a 3550lb A body barracuda with a 418" motor on 91 octane.