Another question if you guys dont mind me asking--

1) Where do I install the oil line for the new autometer oil gauge I just purchased?

2) Where do I install the long probe at the end of the line on the new temperature gauge?

Ive looked all over the engine block and a bit perplexed. (please have mercy on me, im learning here guys--but do appreciate all the help )

EDIT- Instructions said install both into the engine block.

Also, how do i get this nut thru the firewall?