Rod Racer

Like I said, have a chat with Crow Cams and/or Clive Cams, they might have grinds that are suitable to use with VCT.

The point of the VCT is to advance and retard the cam's timing to suit various conditions. Advancing cam timing boosts torque at lower rpms. Retarding the camshaft at higher rpms boosts power. This allows the engine to make more usable power over a wider rpm range than the standard engine. Using larger duration and higher lift cam(s) would cause piston to valve interference when the VCT attempts to do it's job. If you are looking for a lot more power, just lock out the VCT sprocket and use the appropriate cam to suit your needs.

Cam selection for a VCT engine needs to be carefully considered, due to the amount of camshaft advance and retard happening. Excess of timing duration and/or lift will cause piston to valve interference and a badly damaged valvetrain, cylinder head and pistons. I'd suggest you call Crow Cams, or Wade Camshafts and talk to them about this, rather than relying on info from the interwebs. They might have specific grinds to suit the VCT engine. Otherwise, perhaps converting back to non-VCT might be an option, considering your RWHP expectations. Good luck.