360 long block fresh build hyd lifters oil thru pushrods mag heads. I preoiled today & one rocker was flooding with oil & several rockers were getting a slight amt of oil but the rest of em were dry, WTH?. Does this sound like the lifters or pushrods are plugged or is this from the lifters being at different height? tho visually several of em at least appeared to be at the same height in the lifter bores as the one that was oiling profusely. Thank you for your time.