SP had 159K miles on the clock when we did the Resto. The Rockers were really sloppy. So, we decided to put on Roller Rockers as a replacement. Used Profom 66868 Rockers, and then the Proform 66416C Push rods. Broke in the Cam. No worries. Took car out for two around the block test drives, no worries. Yesterday was a Very nice day in KC so decided to take her in for an inspection to get tags on her.