Nah, no idle control, no idle bleed holes or anything like that. Idle is solely controlled by how far open the throttles are open. The problem is that even the slightest movement makes a noticeable difference in airflow, but without enough movement of the TPS to register a change in throttle position. I guess that's what you get with 6 x 45mm throttles though.
We have got it running a lot better now though, disabling the bloody wide band correction helped a lot as the engine was often misfiring and fucking up the A/F readings, which it then tried to correct..
In any case it still doesn't want to idle below 1100 or so. I'm thinking a better ignition system may help, so Mark needs to wack on the MSD he has to see what happens.