Thanks everyone, ill give that a go.
am i wrong in thinking that if you set the low spped needle first, that you will inevitably (sp?) change it when you adjust the high speed needle?
I'm using my engine in a Serpent 720, with 2647 pipe with high torge manifold and an orion clutch conversion for the serpent centax 3.
Does anyone have a good clutch set-up for this version? what gearing do you use in the 720?
Cheers
Matt