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R07 Cylinder Heads Port Angle Comparison

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We laid ink pens along the line between the center of the intake port opening and the center of the valve to make it easier to see the port angle. It is easy to see the port on the R07 (left) is significantly straighter than an SB2.2's. This will aid port flow but may complicate keeping the fuel in suspension.
R07 Racing Cylinder Heads - New Power For Chevrolet

 We laid ink pens along the line between the center of the intake port opening and the center of the valve to make it easier to see the port angle. It is easy to see the port on the R07 (left) is significantly straighter than an SB2.2's. This will aid port flow but may complicate keeping the fuel in suspension.  View Related Article

 

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