Screaming Eagle heads..
 

I bought my '96 FLSTN a while ago and trying to find out what spec the bike was sold new with. I was told by the guy I bought it from that the bike had stage 1 or 2 heads/cams fitted from new but he didn't know exactly what!
As you should be able to see from the photo it has screaming Eagle heads fitted..Any way I can find out whether it is stage 1/2 or whatever?
Supplying dealer is Fred Warrs here in the UK but does not have records available for the info I need..

Thanks!