Hey Alan
I have the 40 DCOE setup on my TR6 and I love them, finally after getting the jetting really close to right, I got some leaner idle jets to put in this weekend, and yes you can spend a bunch of cash on jets, but once I get mine set I wont need all my jets and I will make you a sweet deal on everything, plus you can buy a set of micro drill bits in MM and just drill them out, and once you get them right purchase the set that will have the correct numbers on them. I don't know what you have done to your engine and it will make a difference on jets,My engine is soo far from stock, I doubt my set up will work on your car, mainly the idle jet and progression circuit is the hard part. Webers mainly run on the Idle and progression curcuits. the Main jet and air correct jets only are a factor above 3000 RPM. you can read terry anns triumph page its a big help in tuning webers. The jetting that comes in Webers and set up for a TR6 engine is close but will need tweeking. you definately need 40DCOE and 30 MM chokes, maybe even 28MM chokes. That will stop you from having the flat spot off idle that most people have with webers. Actually I had more trouble with the stromburgs, the dash pot oil leaked out into the manifold, and running rich, and the linkage, even after I had them rebuilt, thats why I took them off and went to webers. Plus the weber manifold is a straight shot into the cylinder head.
any questions you can PM me
Hondo