[twin turbo]

If I remember correctly, Keith Craft got his Kirkham down to the low 10's at the Run-N-Gun a few years back. Although I think has was making over 700 bhp, running billboards, and had to do 2nd gear launches that wreaked havoc on his clutch.
I still think that unless Tommy screws up, it will be money in the bank for him. Cheers.
Thomas