I believe the extrude honed SVt 2.5L upper is better than the taurus manifold. It would be better to use your 3L heads though instead of stock 2.5L heads.
It would be interesting to see the horsepower, though I guess if it was completely stock then you would get the stock 200 HP out of the motor. Better torque, but no more power than an SVT motor.
warmonger