So I was putting on my P2R spacer the other day and after the installation I was checking alignment when I noticed that the throttle body doesn't seem to be an exact match to the plenum. (This was after opening the butterfly and looking though the TB) I took the TB back off thinking somehow I must be to blame but while the spacer/plenum openings looked identical, the TB seems a bit smaller. Has anyone else seen or noticed this?

On a side note, the P2R spacer seemed to line up with the plenum better upside down or with the notch on bottom. This is opposite from what I have seen in the DIY videos. Any feedback here?