You take the dist to oil pump drive gear out of the motor and stick a oil pump priming rod in the oil pump and spin it with drill. Do that first and then turn the motor over by hand while spinning the drill motor and then youre done. Put it back togeather and start it.

There's three different ones in this picture for a Mopar. The one with yellow tape on it is homemade fron a peice of 1/4" chrome moly tubing. It's primed a bunch of 3000HP hemis with 60W oil.
Adj push rod and primer tool for Chev too.