tm7583 Posted February 27, 2016 Report Share Posted February 27, 2016 I have tried both the FMF Gold Series Fatty and the SLP. The SLP makes more power at lower rpms but signs off earlier. I can tell riding the bike, I like the hit of the SLPs. My mods are below: 13/43 gearing 0.020 bore +4 Timing VF4 reeds 150 psi comp (20cc domes in stock heads) Trail port (intakes cleaned up / exhaust ports widened) Driveline clutch Dyno graph posted in my gallery. Quote Link to comment Share on other sites More sharing options...
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