Thread: Improving MPG in my 223
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Old 03-01-2012, 09:33 AM
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3414
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I do not know if they make one for the 223, but I have had good results with an Offenhauser Dual Port 360 manifold on a 351M. When driven conservatively mileage improved about 2 mpg. This was with an AFB carb.
 
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