tuning a magnum

I was under the car today and noticed the fuel pump motor is not tight against the pump body. I'm gonna order a reseal kit from mallory and a couple new filter elements. Then ill mount a fuel psi gauge on the cowl and see what's what. Think ill check the float drop as well, maybe the needle is in the way and I'm not able to fill the bowls fast enough.... what do you guys set your total advance at on a magnum?