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imbalance counter weight
This isprimarily due to the fact we enlarged and widened the pushrod pinch removing that checkpoint in the entrance of the intake allowing us to design a port with a more direct shot at the back of the valve that also has a more consistent cross sectional area and velocity profile
Designed for use with your OE factory gasket (not included)
RPM operating range 2500-6000 Duration advertised Inlet 288°
Composite Intake Manifold Gasket Set FE1237-4 Product:Suit SB Chev SB2 Mirror Port 1.40" x 1.90" (.090") imbalance counter weightComposite Intake Manifold Gasket Set 1237 4 FE1237 4 Suit SB Chev SB2 Mirror Port 1. 40" x 1. 90" (. 090") SB CHEV INTAKE GASKET SET Fel Pro replacement gaskets bring Fel Pro's world famous quality and reliability to standard passenger car applications. These gaskets are suitable for stock and mild performance engines but are not recommended for high horsepower and high compression race engines which require the extra durability and features found in
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