The 777 is no slouch. It needs cleaned up on the bottom end a touch. The FPP Octane Chamber is slightly longer than a mod chamber but a hair shorter than the limited Bpipe Chamber, The upgrade was that they welded a larger sleeve over the exhaust stinger and allowed the incoming headpipe water to stay out of the inside of the chamber. It was an effort to cool the chamber stinger at the hose end and flow into the waterbox. Xscream also used to mod some there b pipes the same way if I recall
you can really wake it up with some hot seat or Polaris intake manifolds and mikuni based 44-48mm carbs. A Lightened Flywheel, Total Loss ignition is a whole different feel. Even a remapped stock PVL CDI will wake it up a notch. My 02 Octane is a rocket with the watcon head/hot seat domes, vforce sled reeds, Octane FPP Dry Pipe. My 2003 is a stump puller as well. I have sponsons on both octanes and they help quite a bit. The -2 UMI pole and a shorter turn plate make the overall ski feel solid. Way better than a stockish handling round nose. But they all run hot and straight.. leak water for days. Great range for cruising the lake or river all day. Just keep the elecs dry and put a pool noodle inside the hood liner! -Octard for life!