Paul,
As I said I think your on a good thing. I just finished an over the radiator cold air intake for the Gen 111.From what I have read on the LSI Forum this mod seems to make a big difference.One of the posts talks about a mafless tune ,cold air intake and new valve springs and resulted in 244rwkw.Mine will go back on the dyno in a few weeks so i'll let you know. Currently Ive got 210rwkw.
Phil