Stock jetting at your elevation should not be 250, I am not sure what book he is looking at. There is not a book that says if you have pods and are at 4??? whatever ft elevation then run 250's and it certainly does not say that in the maint. manual. You can get it running right w/pods and stock pipes, but isn't going to help performance much if any. You really need to do a plug chop. It is hard saying at your elevation, and current temp. what is going to be right for your setup. That being said, you will probably still be a little lean in the winter at that elevation w/t5's, pods, and 250's. That may work for you during the summer. Maybe someone like Jarrod will chime in who has experience at the elevation you are at, but plug chop is the way to get it right. Always start rich and go from there...300's maybe w/the new setup you are speaking of.