I took the valve covers off my chevy 402 bb last night and ran a priming shaft to make sure everything was working right. My drill goes up to 550rpm's, it's pretty powerful so I imagine it was around 450 while spinning the pump.
Either way, it took a long while (probably a minute and a half) for oil to make it's way up to the rockers. Eventually I got oil to all the rockers, but it wasn't coming out too fast.
I have hydraulic lifters and roller rockers by the way.
I'm just trying to get an idea if the oiling system is working correctly as I've never done that before?
Also, is the correct take-off for oil pressure right above the filter? I've heard that tap isn't the one to use.