Sorry I didn't actually mean to sound flippant but what you posted really was a bit OTT.
Agree with the guys, with the small blower fitted to these engines and assuming it's healthy and running on decent fuel, upto 30bhp is a safe gain.. Anything more and you're asking for trouble.
No quality tuning outfit will get caught up in the numbers game... and remember it's not always about the peak numbers anyway, it's all about power bands and who can achieve the widest power band safely.
As long as you're happy, that's all that really matters. Even 30bhp is a 33% gain which is huge really. Just enjoy it pal.