2001 Mustang GT. I'm looking for the right cam.

3.27 would be the stock gearing, if you still have them.

Cam selection for these cars ALL depends on what you want to do with the car. You need to figure out your power goals and the ultimate function of the car (daily driver, street/strip, strip, road racer, etc, etc) before anyone can venture any sort of guess.

The various Stage 2 cams out there have been very popular. In this case you are looking at cams that do not require reworking the bottom end of the engine (ie, they do not create interference with the pistons - stronger cams WILL).

I would recommend you do some thinking as to what you want out of the car, and come back to us and we can guide you as to how best to get it.

The HiTech Stage 2's are not a bad choice at all. You can run them with the stock springs, too, whereas most of the other Stage 2's have a more aggressive profile and will require stronger springs (ie, Comp Stage 2 Cams with Beehive Springs).

Note that there is no easier time to pull the heads and get them ported than when replacing cams, and ported heads will just about double the power gains from the cams...

i would say hitech stage 2 all the way they yeild a really good gain without having any piston to valve clearance problems but depending on how many miles are on the car i suggest replacing your stock valve springs while you have the car apart and now would be the most cost effective time to have your heads ported their is only about a 2-300 dollar price diff. to pull the heads and replace the cams and the gains will be almost double hope that helps and welcome aboard