1G Slow boy 1G racing head, help plz

[Chrono]

Recently I obtained a slow boy stage 2, 1g racing head. Part number is sbr 662, now apparently it come equipped with:

6 bolt cylinder head
Stage 2
Port polished
Ferrea valves
Brian crower springs and retainers

Can anyone help me out verifying this information? Or has anyone purchased one of these heads, and can help me verify the parts and what exactly "stage 2" is from them? I can't find much on the forums or the net.

Thanks in advance

 

[napkinthief]

i believe the stage 2 is a 5 angle valve job and slightly larger porting job. the runners may have different angle variations to increase flow. other than that...the valves and springs retainers compelte the package....

 

[Chrono]

i believe the stage 2 is a 5 angle valve job and slightly larger porting job. the runners may have different angle variations to increase flow. other than that...the valves and springs retainers compelte the package....

Just seeing if the valves are actually what they are said to be, without taking them out, and actually comparing them.