dstang02

Hi, I just got a vortech v2 s trim non intercooled for my 02 mustang gt. I havnt got it installed yet because im a little unsure if I should have the 3.48 pulleys installed or just keep the stock 3.60. Is it safe to install the 3.48pulley without an intercooler? I also have the anderson p/p and all bolt ons besides headers with 90mm maf and 42lb injectors. What rwhp should I make with the 3.60 and then with the 3.48? Any help would be appreciated.