<font size="2" face="Verdana, Arial">I've never actually done this mod myself, but the way the CV carbs work is based on the pressure differential across the venturi in the carbs... if you pressurize the airbox with ram-air, then you also have to vent the float-bowls to the airbox instead of to the atmosphere so that the fuel gets pressurized the same amount as the incoming air. I'm not sure how to go about doing this... perhaps the fuel-tank should be vented to the airbox? In any case, you'd have to make some sort of provision for pressurizing the fuel in the float-bowls rather than just changing the jetting, else the jetting wouldn't work across all the different gears.Originally posted by audi1031:
well also remember that with the increase of pressure will need increase of gas. If you don't you will lean out at top.