They're CBR900 Carbs, I had thought about going with TB's but the price and learning curve of Megasquirt was a bit too much. Though I'm sure once its running I'll be kicking myself for not going with FI. As for the intake manifold, there isn't one yet, the carbs were just laid in place for the pitcures, there's a piece of wood propping them up. There is a guy in the UK who sells manifolds on Fleabay, but I'm sure I can cobble something up for less than what he charges.