Looking for any shops that tune in LV area. Just added a 17 % pulley.

You don't need a tune for a 17% pulley - you can get a tune from Revolution motorworks in California...not that bad of a drive.

Do you plan more mods? If so- wait until they are done to avoid needing to retune the car.

Bigger injectors open up more opps for power and tuning as well

What Kahn said. You can do the standard stage 1 bolt-ons: CAI, exhaust, and pulley, sans tune. You can even add the JCW 380s w/out a tune (or a MINI dealer can install the factory JCW tune). But you won't need more fuel till you consider a header, bigger cam, etc. When you get to that point, to echo Kahn, look up Jan @ RMW.