I am running a 12:1 416ci motor with a VVT-1 cam, advanced (0 value) until around 3500 or so and then retards towards 2 degrees (2 value) by redline (so very little VVT activity)....
I believe I have a 3.7 inch pulley on it, but don't really expect more than 10 psi by redline with this motor, which made about 550 rwhp NA.
Running E85 but no meth. Have not had an issue keeping the throttle open, even while tuning SD with a failed MAF.
I am open to suggestions regarding the TSP VVT-1 cam and retardation curves.