Well all I did was put a little oil in the top of each lifter with an oil can and pushed it up and down a fuw times. I read somewehre it not good to fill them up. I also turned the oilpump with a drill till oil came out the rocker arms. Engine seems to run quiet no lifter noise at any time. Reason I got high volume oil pump is because I didn't change the crank bearings. All rod old bearings looked in good shape and engine didn't have much wear on it, so I figured a high volume would just keep it about stock after losses. I have run engine about an hour or two total time so far. Drove car across town. seems to have plenty power and pep and response.