Purchased new in 10.15.06, broke in 1st 1K stock, had bike dyno'd at 1K mile service to see what was under the tank. Factory HSP: 83.63, Factory TQ: 109.90...??...not bad but needed more. Installed SERT, HI-FLOW AIR, RINEHART TD, 2nd dyno results HSP:96.52,TQ:117.11... rode bike for next two years, flawless all around, no head gasket leaks or any issue at all...then received the dreaded recall letter for new heads and gaskets...Made the appointment last month, figured since the top end was going to be new agian, maybe I should bump the performance a little and change out the cams. Talked to Gary at Andrews and reccommended the 54's. I had the new heads flow tested proir to port/polish then proceeded to mods:
1) Heads port/polish
2) Installed Andrews 54H cams
3) Kept hydraulic chain tensioners
4) Upgraed to a larger hi-flow air cleaner
5) Kept factory TB
6) Re-dyno'd

Mod results HSP 110.5, TQ 120.9....the 110 woke up big time...