Thanks GM!!!!
Ran 3 times, 13.7 first, then the other two rounds were 13.155 107.15mph 2.156 60' then 13.122 107.15mph 2.075 60'.
headers, TB, minor crap and weight delete. 170k, untouched tranny internals untouched engine internals.
Cant be more pleased then this. Will scan slips later tonight.

