Plenty of them. I only run one stage with a .068 jet as of now. I've only been able to muster a 12.2 out of the crew cab, but then again that's the wifes truck and I don't want the sunglasses to fly out of the holder on the launch.
oke:
My Reg. Cab 6.4L only has 3k miles, so I'll change oil before giving it a hard beating. We have plenty of mid 12 time slips on fuel only with regular cab trucks, but I'm planning on testing out the high pressure tune really soon on the spray. All runs are on stock trans, but I imagine I'll need a trans once we start really throwing the spray to it.