dumb question. fuel pump

[c20pickup]

alright, heres what ive got.
new motor
holley big end mechanical fuel pump
lightweight push rod for the fuel pump.

how do I put this on my engine? do I just push the fuel rod into the hole in the block then bolt up the fuel pump along with a gasket? or is there more to it? this is coming from a guy who can rebuild just about anything haha but I still don't know how to put one of these on, go figure haha. when I tore the engine down the fuel rod wasn't even in there, the pump was there but no fuel rod was present, someone had added an electric pump (its being taken off, im going full mechanical) and im guessing they were to cheap to buy a block off plate for the mechanical pump so they just took the rod out, well anyways this didn't help much because I couldn't see how it came apart, therefore don't know how it goes together. advice would be great!