Alright thanks again for the input. I was thinking of not going with the sandwich adaptor plate, as i've heard of issues.. and going a different route. what are my options if I don't use that? anyone else have an stri oil psi gauge hooked up? Does that sending unit (bottom right of my picture) replace the galley plug? does that screw right in? I'm not really familiar with how to get this hooked up, but it's been sitting around for months.