Here we are:
Manifold hand made apart from special nipples that mimick Sportster O ring arrangement, only much thinner, clamps are narrowed std Sporty items, carb flanges cut out off early Sporty manifolds. Cylinders inlet tracks not moded at all in case some day I want to go back to single M 53a carb ( still, plenty of fin trimming to fit it all inside the vee...)
Front carb is all reversed/remachined, both have the XLR venturi mods. When I've sorted the carburation with the std butterflies, I've got 2 throttle bodies ready with Tillotson butterflies and special iddle chamber screws. Chokes are a single alloy sliding plate inside the filter back plate.
Check for drawings/other photos on my site, tech page (click on link, below)