Don't bother to fill the filter if you are priming the system, it takes only a few extra seconds to fill it, and theres less chance for a mess. With a 460 the filter screws in almost sideways and you can't fill it much anyway. At first, the drill will spin freely, then it will draw down slightly when the pump picks up prime, then it will draw down further when the filter is full, and finally it will draw down even more when the oil galleys are full. DO NOT continue to keep running the drill! All that will accomplish is to wash all of the bearing assembly lube off of the bearings and down into the pan. If your rig has a remote filter setup, it will take longer, but the drawdown will be the same, if you are unsure, you can crack open the return line from the remote filters to the block and see when the oil lines are full back to the block. It is neither necessary or desireable to prime until oil is at the top end and comes out of the pushrods, you should have lubed them anyway. With a hydraulic cam having the lifters empty at start-up eases the cam break-in too. TIMINATOR
