Definitely replace that bent pushrod. It's not going to get straighter.
As far as the weep holes in the rockers, I don't believe you should be able to push a wire down thru them without hitting the top of the rocker shaft. The oil supply holes on my rocker shafts were on the bottom of the shaft, with the weep holes on top (of course), so the oil gets supplied to the bottom of the rocker pivot point, works its way up to the top and out the weep hole. If the oil supply holes are on top, then the oil is going to just spurt out of the weep holes continuously (unless the weep hole doesn't line up with the supply hole at some point in the rocker travel) and supply to the bottom of the rocker, where the pressure is, will be compromised.
I really think your rear rocker shaft is assembled upside down if the weep holes line up with the oil supply holes in the shaft.
Someone will correct me if I'm wrong, but I don't think I am.
