Where does this mount for Rally Gauge setup? I bought an original sending unit and it doesn't want to fit in the space where my aftermarket sending unit was. It is right below the distributor and coil on the engine block. I just want to make sure this is where it is supposed to go. I have also read that it attaches to the oil filter adapter? Is there any other place where this can go?

Dumb question, I know - but sometimes the easiest things cause all the problems!