installation question

[1badazz_700r]

I have a few questions, hoping someone can help. Im installing a whiteknuckle 54mm TB. Im wondering if the bolt hole im pointing to in the picture is where the tab on the intake bolts. Next question is the fuel rail will not mount flush against the throttlebody causing a slight gap at the top of the injector where it pushes into the fuel rail. Will this cause an issue? I bought a used RC 650 injector also, is there supposed to be a rubber seal on the bottom of the injector? cause it dont have one just the one on the top. Also the stock intake tube has a sensor that plugs in. the new intake tube has no spot for this?? what do you do with it? sorry for so many questions,and thanks for any help. pictures attached