TR6 Triple SUs

[john_worthy_at_wca-0606@mail.workcover.nsw.gov.au]

     Listers
     
     I've seen several articles on Webers and even triple Strombergs but 
     I've seen nothing on triple SUs.  Does anyone have any experience with 
     these?  What performance improvement can be expected?  What size?  
     What size needles?  How do they compare with PI and webers? Who sells 
     a manifold?  What other mods need to be made at the same time?
     
     As usual any information would be appreciated.
     
     John
     72 TR6