Is anyone familiar with this last iteration of Rover intake manifold, and how it compares to the more common trumpet-in-plenum design? JJJ http://cgi.ebay.com/ebaymotors/USED-Land-Rover-Disco-II-4-6-Engine-Parts_W0QQitemZ260485388864QQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item3ca6239a40