but that was only on our initial test car. I'll be dynoing this week to tweak air and fuel. i'm not going for picture-frameable dyno chart as I *plan* to only run 14psi or just a tick under 14psi and spraying water at 7psi and above.
I think 400 is possible. But you'd need atleast upgraded intercoolers. One of the only reasons we stopped at 371 is the intercoolers (the ecu self learning wasn't helping either).