[wheelhop]

I was editing my post while you posted ^^^^^YEP! You have to test and see. It depends on the cam duration, initial cam centerline angles, turbine, intake manifold design, even exhaust manifold design, displacement. There's SO many variables. The factory cams have a certain cam timing for the stock setup and intented results with such a setup. The same goes with aftermarket cams. They are setup for the most common range of upgrades. I would use a dyno or trapspeeds to dial them in.