Dong Fang DF 250 RTB Bobber Information

[axa]

There's always going with a CV carb.Could help bottom end.Doubtful top end would get any better than the pumper carbs.

so is that what a vacuum carb does... not yet sure that would attain anything the shorter intake doesn't.
From what i gather, a shorter intake may help the low end by providing air that is available right there right now. While a longer or thinned out one may actually help with funneling and speeding up the air for help with top end.

since i currently need to run with the choke a bit (due to removing the intake manifold), i currently only attain 6.5k rpm tops. That last 5k is seemingly a big disadvantage limiting my top to no better than 55, indicated. The local town dump truck passed me on the way to work this morning.