Drive-ability is all opinion based. From what I have seen the torque band is what gets the biggest improvement. And frankly I think the svt mill needs more top end punch. It's a great engine, but there is a lot left laying about without having to spin it to ungodly levels. Why are most focus owners hesitant to try old school hotrodding tricks.
MR. freaking negative
i'm not an enthusiast...... the internets told me.