How far to advance timing on my p pump

Doing the 24v p pump swap and looking to get some input as to how far to advance the timing of the pump and some how to's as well.

We need to know the rest of your set up and what the truck will be used for.

What injectors? and like said above we need that info too

Thats another question. What injectors do you recomend. The truck is going to be used as a puller and for the 1/4 as well and i would still like to keep it a little streetable. Im really not a big fan of owning a trailer queen. But the way things are going i may end up there anyway. For the motor im putting on twins, h2 cam, springs, rings, arp new age studs. Also should i run overside lines? The pump is being built by columbus.