[BurritaSVT]

The escape manifold and the mazda6 are identical intakes in shape and height I used the 2004 Mazda6 for the test and shut the hood. The manifold is deeper on the back plenum. I had to relocate the coil pack on the motor. I will take pics of the mazda6 manifold when I arrive home. I will say if you are looking for the easiest cheapest swap if you don;t have the SVT cams then just do the full 2004 swap. I will redo the test on the setup minus the 2001 tuarus manifold and replace it with the st220 and the split port 3 liter 1998. I spent ovver $400 on the dyno to get the unanswered problems somewhat completed. But my analaysis is that the Taurus is very restrictive above 6000 rpms because the aiflow is to fast for the smaller runners. I only had gutted cats stock y-pipe and my CAI with the tune not touched once I dialed in the first ova port engine at 13.4 A/F and did not touch the spark tables afterwards. The SVT manifold was 12.0 A/F which was the last manifold I tested so I had to recalibrate the A/F to 13.5 to keep it within close measurements. I do know I could have added alot of timing in the SVT midrange because the airflow was slow enough to tolerate more spark where I could have sat on the dyno and made more power down low but ar $120/HR I was already spending enough time swapping manifolds.