according to wallace racing calculators
6.64@ 107 - 1/8 mi =
10.47@132.68 - 1/4 mi
and............
Your HP computed from your vehicle ET is 631.02 flywheel HP and 567.918 rear wheel HP.
Your HP computed from your vehicle MPH is 729.61 flywheel HP and 656.649 rear wheel HP.
You listened to my tuning advice (removed the seven passengers) and that thing came alive. I'm guessing that theres another tenth or two to gain by getting the people out of the trunk.
That's a great ET and mph for only 19 lbs of boost. those heads can flow.
What's even cooler is that you did it on pump gas, and your sled still has AC and cruise.