[drdisque]

you don't have to drill holes in the MAF, it already has holes in it where it bolts to the airbox. Pro-Flow makes a larger MAF that theoretically should work with a taurus. Larger TB would have to be custom done though, maybe you could use the TB off a Mazda 6 S if it uses a bigger one. I believe the stock injectors would be good for any NA mods you'd do.

From my 1/4 mile time (15.77) compared to a typical stock duratec (15.95), the mods probably gave me about 4 or 5 hp.

Also, if you're going to drive either of your tauri hard, I highly suggest an auxilliary transmission cooler. I used a Permacool, B&M's are supposed to be better, but they're a lot more expensive.