Thanks everyone
I have been wondering for ages what they were
if only they were for IDAs I could run them...
the IDA manifold thread is really cool
its ironic that I recognised a pair of manifolds in there
I have a pair of them in my loft
and it says unknown manifold underneath them lol
my short IDA maniflods:
These came off or Simonski's wheelstanding Hustler buggy before it retired with a stck 1600...
(now on ebay)