Here's a part found on a lotus Exige S1, that might be useful for peeps converting to TB's. A vac balance pipe: It has 4 sml vac takeoffs on the underside, and two larger ones, one of which is the black pipe pointing up from the middle, that is for rockerbox ventilation. There's a similar large one on the underside (behind the plug with the green/yellow wires) pointing down. I could probably get the part number of someone's interested, they're probably NOT cheap.
A lot of these types of Lotus engines get converted to Honda's, could well be a few 2nd hand for very little dosh about.
