I understand that the fitech unit has a built in regulator, but I don't want to run another line the whole way for a return line. Using this, is no different than using the FCC currently. Inside the FCC is a return/pressure regulator, and there is only one line ran to the TBI. Mounting the GM filter/regulator closer to the tank accomplishes the same thing that is happening inside of the FCC without having the FCC take up room in your engine compartment and also get hot.
