over time I have accumulated various bits for these bikes, yesterday I was looking at an extra set of intake manifolds off of a thruxton. these are basically the same manifold as the ones for the SM/America but they are longer by almost a 1/2 inch. Has anyone tried running the longer manifolds? They could/should have some effect on torque/ low end.
any thoughts?
05 speedmaster - 1100cc, 11:1 racing pistons, Carillo rods, thunderbike cams, ported and polished head, 2mm over intake and exhaust valves, Barnett kevlar clutch, scepter pipes, oversize manifolds, 45mm HSR's, TTP stage 4 firestarter
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