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I've always wanted to know........... What engine is the smoothest runner at highway speeds??????? V.



with out a doubt the t-bird. 80 mph in 6th gear is only turning 3000 rpm. at 55 - 65 mph you don't even know the thing is running.

the speedmaster is turning 4200rpm at highway speed 70ish mph (current gearing for more fun)
now if the speedmaster had a sixth gear! the comparison might be less one sided.

I still take them both on long trips without a second thought other than one up or 2 up.

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