I drilled the head and installed the temp sensor. Bought a new fuel pump that mounts out side of tank at the parts store. Make sure that you get a fuel pump thats used of TBI. I used the drain plug in the gas tank as the fuel feed with a fuel injection filter before the pump. The old fuel line to the tank became the return line. I mounted the ECM below the fuse block on the drivers side. My heater is on the passenger side.