Hi, I am trying to find out if there was any rhyme or reason to the style of covers that alfa chose to connect/seal off their fuel pump assemblies to the top of the fuel tank. Mine has a steel cover with 8-12 bolts that held it onto the fuel tank. I have also seen a plastic style as well. I am wondering if i can use this plastic style interchangeably with my 1995 164 q? Thanks. Does it have all of the same ports and electrical hookups?