engine noise

I had a noise like that or very similar to that sound on mine when i fitted a B&M flex plate,and it was rubbing or touching a section of the mini starter.It had me baffled as the sound traveled right up into the lifter section.I did what Rusty suggested ran a socket extension around the engine while on stands and traced it all the way back to the starter,found where it was touching than ran a dremel with a cutting tip.Fixed my problem.Just to put it out there dont the mag engines run some type of Valley baffle or plate for the lifters ? could it be possible that a lifter could be hitting it when its coming up on its lobe?? just thinking out loud..