I remember your tank James, has it leaked all over the floor yet [?]
Any 1 3/4" SU, HIF6 or HIF44 off a Mini or Rover v8 is fine. Basically i cut your carb flange off and block the hole and make a new flange which is welded on the side. It,s more like the size of carb the engine needs to breathe properly.
If you can find someone local who can weld then they should be able to fit an RC40 for you. You just need to sort the pipe adaptor 1 1/2-1 3/4"
"You,re only supposed to blow the bloody SLIDING doors off"
No it has'nt leaked at all its been great, i have a couple of mechanics that i use so i'll ask them if they could manage the exhaust but i may need a diagram for them[)] also just found a couple of them there su's, quite expensive may not be changing just yet as only done about 200 miles on new weber carb
just asking? why is an SU better than a webber? what are the pros and cons? Apparently Tigger has one of your ported manifolds Tim and I have an RC40, but he still fels a bit strangled?? or maybe it's just the pure weight of the glendale (snail) on the back?