HV oil pump vs Stock oil pan

When I was priming that 360 I had a Millwaukee Hole Hawg set on high speed of 1200 RPM. Mind you, the cam and oil pump drive is spinning half speed of engine RPM so this was like if the engine was running at 2400 RPM. That stream of oil hit the roof of my tall garage and oil shot everywhere. Hole Hawgs do NOT slow down fast when you take your finger off the trigger.