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09 Head hell/insight?

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So i have a modified 09 with a carillo rod ported head 13:8:1 piston and i had some 1049/516 webcams with stock springs and retainers but dynoed 45 hp because tuner said i was having valve float . I was thinking in doing a little freshen up as i ride my bike almost daily and throw in some new ring's but i was also thinking in buying those kibblewhite valve spring kit's the specs say the can run with stock valves and those should hold my webcam lift properly as they state 415" max lift . Just wondering if changing valves is necessary? Or should i keep using my stock titanium ones with kb spring's?

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