1971 Duster 340, 4spd, FE5/blk resto, "ruster" to Duster!

813Demon340 said
RPM is a product to treat bare metal parts. It ulls them slightly but they will stay bare metal for a LONG time once treated.

http://www.ecsautomotive.com/rpm.php

Thanks, that clears things up. Great job on the car. I look forward to seeing your pictures on the resto. Keep'em coming!