honda clutches are the best, there's no reason to replace springs or anything else. cbr sites prove it, and if they hold up to 120+ hp...
never mind 160-ish hp in my bike and repeated hard drag launches w/ 1.6-1.7 60foot times. that's all clutch. and mine's all honda. lasts all year, when i don't ruin my engine by eating spark plugs anyway.
don't leave out honda parts. (judder spring/seat)
what makes you think you know how to build a motorcycle better than honda does?
i put a similar fairing on my bike and there wasn't an iota of speed difference. seeing as i'm going 134 in the quarter, aero advantage would be even clearer than at 119, so i question whether it helps you go any faster.
also, seeing as your trap speed is 119 and mine was commonly in the 119-120range bone stock, me being around 210-220 pounds in full gear, i question whether you're getting any improvement from your snorkel either.
here's yet another example of me not TRYING to be a dick, but my experiences simply lead me to believe that you're mistaken.
for one thing, you're ramming air but not adding fuel. going leaner rarely makes more power, even though our bikes are rich in places.
how many horesepower can a PCIII add by simply leaning the engine out?
dyno charts anyone?