If you decide to fit a foam filter in the standard air box as John V6 advises you might want to consider turning it inside out if the foam is in progressive layers (i.e. course to fine foam) as Morgan uses the air box in reverse to the standard Rover fitting. Mine is a Pipercross filter made for a Rover 800 series. I have replaced the fabric air hose with an insulated Ally tube to reduce the heat from the manifold.
