Kev’s O2 mod richen up the closed loop fueling.
It works well on my standard SP701. Engine runs much smoother at low revs and cruising. You should probably richen the open loop fueling. With your mods I would go for Dynojet or similar AND individual set up on a dyno by a qualified tuner.
This reply was modified 1 week, 2 days ago by Svartron.