yes, i was talking about rev limit because it is very easy to overdo it, especially if you do not have a rpm meter
how will we tune it the two carbs, lets say the engine is misfiring, how will the tuner know which carb needs adjustment.
i was thinking that new exhaust manifolds may be fabricated, one pipe for two cylinders, that ought to make tuning easy with a gas analyzer.
btw what upgrades will this engine need to make it safe to rev high continuously (say 8-9k)