Originally Posted by
5speed Sorry, there were so many # to remember I got mixed up. The longest runners were 10" and not 13". You can manage 13" if you angle the runners at 45*.
So I take it you didn't find the 10'' runners to provide any noticeable power gain then over the shorter lengths. When you changed the runner lengths did you adjust other aspects of the manifold or engine at all? Or are these all with different alterations to the setup?
Walker