I don't remember for sure but you may need a distributor body in place to complete the oiling circuit or you won't get any pressure. You can use an old distributor and take the drive gear off the bottom and cut off the top so the shaft fits in your drill motor. If you just want to prime the pump a screwdriver bit works ok.
That's what we're going to use because it's laying around but when I did my cam I was able to do it with an old sacrificial screwdriver that I cut and put in my drill. Worked well.
