Mustang Magic in L.I., NY. Any thoughts or opinions?

Hello to all, was just wondering if anyone here at AFM has gone to Mustang Magic in Deer Park Long Island. I just got my MGW short throw shifter today and i am definately going to pully/tune it this summer. I havent spoke to anyone that has gone there so any input would be great. Also any suggestion on pulley size? And also do i need to buy a tuner or would they do it there?