This has been on the cards for a long while, I finally got around to having a crack at it.
Until recently I owned a Ford High Performance Mustang 289 K code, the K code had a unique 4 barrel Autolite 4100 carb, this thing was the mutts nuts, so much nicer than a Holley.
When a friend had one for sale I grabbed it and built it up to be the same as the one fitted to the Mustang, my logic - if it made the Mustang's 4.7 litre go like the wind it would be OK for the 4.6 Rover.
It is not proven yet, but it is fitted and the car seems to like it, finessing the jetting is yet to come, but the hard work of getting the thing sitting on the Rover is done.
Nice and clean inside, valley gasket removed to allow trial fitting of Offy intake and port fettling
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I went for a 1" phenolic spacer to improve torque and reduce heat transfer. The spacer is ducted underneath to the brass stub I tapped into the rear for a PCV system.
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Manual choke Autolite 4100 on Offy 360.
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I made a cable throttle linkage operating off the old auto kick down cable bracketry at the rear of the left cyl head.
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K&N Filter and bling to finish off
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Who knows, a set of downdraught's may be the next step ?