Run the #8 to the fuel regulator and then individual #6 to each carbs. from the regulator, unless you want to use #8 to the carbs. The needle and seats will be the smallest retsrictor in the fuel supply lines that way BTW,DO NOT use a 10 micron fuel filter between the fuel pump and the fuel cell, gas tank supply lines(only 80 or largermicron size filters ) I learned that one the hard way :crazyme :Call or look at Magnafuels diagrams on line for plumbing thier pumps