Filtered Airbox
The filtered airbox construction is kind of left as a mystery by Vans. I started by replacing the carburetor drain plug with the screw that Vans provides for clearance in the mounting plate. This whole process is just a bunch of trial and error fitting with the lower cowl. Very early in the process, the airbox has to be cut to rough length to be able to get it to fit inside the lower cowl for alignment. The top plate and mounting plate are clamped to the carb base and the lower cowl is installed. The top plate and mount are aligned with the scoop in the cowl while clamped together. Then it all comes off and some holes are match drilled. A few hours later, after fabricating the alignment brackets, it is time to do some fiberglass work. The airbox has to be adjusted to match the upward bend required to meet the scoop in the cowl.
