I have a k-jet b-21F with Chrysler whitecap. After about five minutes of operation the GREEN fuel pump relay gets too hot to touch. I have since replaced it about two times because the old ones end up molten where the square connector plugs in. I keep about 7 or 8 spare relays in my map pocket just in case! Why is it over heating?? The fuel pump is brand new Bosch from IPD as is the in-tank uint. I also installed new filers at both the firewall and inside the tank. I The electrical connections to the main pump are kosher. The fuse for the main pump; albeit new, will become thin as a hair and red hot. The insides of the dead relays are a molten mess of soldering and green plastic. The wires leading to the square plug are always hot to the touch. I mean third degree burn kind of hot! What's going on?