I just freshened my engine and can hear a pecking that is louder than normal and need ideas about what to check. It is a 360 with solid lifters, the rockers are Crane gold shaft mounted, heads are Edelbrock with double springs. I did a normal rebuild with rings and bearings and never touched the heads, I had a broken ring is why I tore it down. So I have adjusted the valves several times and checked all the rockers, then I took off the intake and looked at the lifters and pushrods, fired it back up and the sound is still there. Where should I look next? I need to get this thing back to the track. Maybe some of you have been thru this before. Thanks.