The smt6 can tune that setup with an aeromotive FMU. We've had Coltsteele's up to 24 psi. He ran an 11.9 last year at about 12 psi. At 18 psi, we never could get traction. At 24 psi it wasn't even worth stomping on. lol KRC has two 6.1's running over 650 rwhp. Neither have made it down the 1/4 because it continues to destroy the Nag trans and it's also destroyed two ring and pinions when attached to slicks. The smt6 is driving those too. A 700 rwhp setup is almost complete and that'll be driven by an smt6 and fmu.
Once SCT is avail, that'll replace the smt6 fueling needs and we'll be able to remove the FMU. That way we can install some 65# (or larger) injectors and scale it back in normal driving with the software.