Originally Posted by saxoncross
Thanks fro the feedback Chris. On your installation what is the length from the manifold to the top of the ram pipe
Have now measured it and the figures are as follows:-
Manifold to inlet end of ram pipe - 175mm
From top of throttle body to inlet end of ram pipe - 90mm
The manifold is a Cobra one for Weber IDA/IDF and has a raised section for each carb choke/throttle body which is where the lower measurement was taken from. The bed of the manifold, ie the flat area between the 2 banks of cylinders, is about 85mm below the raised sections that connect to each throttle body. My throttle bodies are 48mm.
I hope all this is sufficient for your purpose. Measuring was a bit difficult because I have a turkey tray, which would require some dismantling to get a clear view of the manifold. All measurements should therefore be regarded as approximate.
Wishing you all the very best with your project.