Alright, so I have a D16z6 in my 88 had Crx. I bought a new head and it came with what the guy said was a stage 2 cam. On the end that connects to the dizzy, it's stamped cx26. I compared it to a stock z6 head and some of the lobes are thinner. Any idea if it is aftermarket? And any ideas on how to identify springs and valves?

Please help