Ports are too wide for a start dude, and the manifold was designed to flow enough gas for an extra litre, my concern is the pipe diameter will be too large to flow well enough to make any gains on the m20, not sure she'll clear the steering linkage either, E34s ran a steering box on the OS inner wing
interested to hear what others may think though, its only my opinion

Product Development and Endurance for Delphi.
Original performance chips, original works not unlicensed copies

Email FTW