[Jac Mac]

Ron, Put the carbs in the plenum as well so they reference the same pressure should you be careful enough to find a spot for the K/N Filter that gets a bit of pressure. Make the lid removable to service carbs as well.

P.S.-- A large rocker cover off a truck or older six cyl can be used as an airbox-flat plate/sheet alloy onto carbs with provision to screw the cover onto the alloy plate. Extend the plate & cover in front of the carbs so large inlet tube can be connected for cold/ram air.