well just getting ready to install my portflow springs/retainers in my gsr hatch and i was wondering if i need to pull the rocker arms and the shafts they ride on out to get to the springs and retainers? oh im doing this with the head on the engine and a valve spring compressor that bolts to the head.

 

no you dont have to pull the rockers out. make sure you run compressed air in the cylinders.