I've been hunting around ebay, these forums and the net generally for some twin carbs. I was fortunate enough to be contacted by a forum member who had some to sell along with a few outher bits and pieces. I arranged to go pick up a set of twin carbs, linkage, manifolds and potentially a few other bits. Today has made me feel like it's Christmas!
I came away with more than I had expected. I am very grateful to say the least. I just hope one day karma will help someone in the same way.
I came away with a pair of italian 36mm weber IDF carbs, complete with gene berg linkage, manifolds, trumpets and air filters. In addition, a lightened flywheel, a set of davida carb gauges, alternator with stand, heat exchangers, fuel pump, malpassi king filter and a few other bits and pieces.
Time to update with some photos.
Here is my long block with the new barrels, pistons and cylinder heads, now making it a 1585cc. I've already installed the new alternator stand and pulley (not fully yet), as you can see.
The italian 36mm IDF carbs
Gene berg linkage