well if you're smart about it you'd make a more responsive motor without VVT, especially on a ST as the VVT is actuated by oil pressure not the 'infinite' style of the BT. its not either entirely on or off.

If i was doing a 20v, i'd delete VVT and just get larger lift cams with a less extreme duration, a bit more timing and tune more precisely in the top end.

it'd be way more drivable but still pretty punchy up high.