altune

I need some advice on a set of heads I had sold to a friend of mine. We intstalled them on a sbc, they are pontiac 867's and reported by Self racing. They have big block springs at 1.640 size.
Problem is, the spring pockets are cut to bearly fit the springs and after running the engine a few times we found some aluminum tiny shavings from the springs brushing against the aluminum head, it does not look like they were gouging but rubbing.
the rear part of the head where the rocker stands are the closest and highest part where the springs contact.
has anybody experianced this and what would happen if I just let the springs settle in there. I know more debre but what about spring bind at high rp and other mproblems. this is a 700 hp plus sbc.
Need advice as soon as possible.
thanks
Al