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Roger Ball
03-11-2005, 06:10 AM
Does anyone know what the stock ratio is? I am thinking about going to 1.6 ratio roller and I am trying to figure out what it will do for the motors HP.
thanks
Big Bad AMX
03-11-2005, 07:36 PM
1969 290-343-390 Rocker Arm Ratio is 1.4:1