The later dual port singke carb manifolds bolt to the case at the centerline. You can just cut the risers off. -----Original Message----- From: Eric Woodall <eric@xxxxxxxxxxxxxx> Sent: Wednesday, August 29, 2007 2:34 PM To: tcb@xxxxxxxxxxxxx Subject: [tcb] Question for the engine people... I have a question. If I were to change my engine configuration and put a rebuilt Solex 34 Pict 3 carb on my 1600, what do I do with the pre heater tubes on the intake manifold? I have a A1 header exhaust.