There are some other Supechargers for the MGA

Marshall Nordec is fitted to the MGA Hawk, needs quite substantial body modifications (thanks to Phil Parmenter for the pictures)

Moss Motors:  Available new, instructions here

Shorrock:  Very rare, if you have details or pictures please get in touch

Hi_Flow : Available new details here

Pepco:  Although a magazine article was written, nothing appears to have happened afterwards.

Contemporary information on supercharging an MGA here