Vent Tube Question

[blykins]

Where do you have your float levels set?

[BDR879]

First of all, I'm running a Quickfuel HR780. When the engine is running, fuel level is 1/2 way up the sight glasses. This is the way it was set up by my engine builder.

[Bobcat]

Try lowering the rear float level some . That should help on the bogging problem under hard braking . If that float level is too high , the fuel will spill out the vent tube directly into the secondary butterflies .
Had that problem at open track Friday at SAAC 36 and cured it by doing that .