I did this mod today. First, thanks to Adam for his 'how to' - very helpful. I also used a couple of tips from Roger Parker's restoration manual.
I more or less followed Adam's guide except I left the servo in position. Of the 4 bolts that hold the air box in, I found the 2 you access via the removed glove box hole to be relatively easy - provided you are able to work lying on your back in the footwell - although one required a UJ on the socket. The front left (looking at the box) under the bonnet was also simple. For the really difficult bolt I used the Roger Parker tip of putting the car on a ramp and using a double socket extenstion (20 inches) via the hole in the subframe....once I'd accepted that I had to work from a ramp, this was actually the easiest bolt to remove!
I then resorted to a pad saw and drill with 20mm wood boring bit to cut-up the old box to remove it (a la Parker)...by then I was in the mood for some serious destruction.
After a clean-up and cup of tea I placed the new box in postion and used 'socket button' A2 M6 bolts (Screwfix 25864) with A2 M6 penny washers (Screwfix 99795) to locate the 3 rear holes. And then I really struggled to sort out the front 3....a lack of access from underneath which could be the compelling reason to move the servo. My solution, not as neat as Adam's, was to use socket cap bolts (Screwfix 93965) pushed up from underneath (with a washer) - I found a bit of vaseline on an Allen Key to hold them helped - then secured with a penny washer and 2 hex nuts (all A2). To tighten the nuts - bearing in mind they shouldn't be so tight to distort the plastic - I resorted to holding the protruding thread with pliers while using a spanner below them then putting on a second nut as a locker....nylocs would have been too tedious.
Anyway, maybe not a perfect solution but a workable one. Pictures below. By the way, Brown & Gammons do have a small stock of the intake - it's part no 276314DB (MGF/TF Air Box) and was £39.14 delivered 1st class signed for.
Richard
1.8i Mk2 Solar Red, 16 inch square spoke wheels, MGFMania hood with zip-in glass rear window, DRLs, Kmaps ECU, Pipercross panel air filter, MGOC Supersports back box & some cockpit bling