I’ve been searching online and can’t find an answer. Stock E7 heads, I upgraded the springs with a Crane kit that includes springs, retainers and locks. The locks are different for intake and exhaust. I have confirmed I have them right. Fresh engine with TFS stage 1 cam and new lifters. After some run time on the engine I have valve train noise. Pulled the cover tonight and all the intake rockers have slop. I can wiggle and rock them. What I noticed is all the intake stems are lower that the exhaust. Is this normal? I don’t remember them being different but it’s been a while since I messed with one of these. Stock pushrods and rockers.