I dont think I'm using anything as a clamp. I dont think I've ever had anything as a clamp tho. No FCD or missing link. I've ran 10lbs before and the fuel was fine except for the injectors not holding it well.... but maybe that whole time it was a fuel cut. Because it wasn't even holding 5 lbs sometimes. I dont know a whole lot, just know that when I'm boosting easy for the break-in period on the motor, that the car lunges forward and stops getting any power. Used to, I thought I needed better fuel management computer because I'd give the car full throttle, and it would stop getting power, but keep spooling up... not really lunging like it is now sometimes. I've got a Walbro255 fuel pump, holley 12:1 fmu, stock injectors and that's it for fuel system. I'm just really friggin confused right now on what needs to be done to get the fuel to respond right.