Thanks for the picture, I have a much better idea of what this looks like. Gotta love the clever spring retention hole integrated into the cable nipple sleeve. This is a Caterham specific part, not weber. I've contacted Redline UK without success (email and phone), will try again.
Ken at Dave Bean has been very helpful, and gave me a great sketch for Lotus applications. It's for sure different than Anker's picture, so this also points to the Caterham specific part. So my follow on questions:
1. Is the V bracket a tube or a plate with a lip on it? If a tube, does it have flattened ends to fasten to the carbs? If a plate, approx thickness?
2. How does the V bracket fasten to the weber inspection plate? 2 screws on each carb? All 4 each carb? If 2 screws, which 2?
Pete