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This is the reply from K&N. I wish they would have given me the flow rates for the E-1963. I will ask again.
Hi George!
The engine needs approximately 488 CFM. You want enough CFM to match the carburetor. The X-Stream 11" Assembly flows approximately 698 CFM. This would be enough to use on this vehicle. The advantage to having a hood scoop when using the X-Stream Assembly is that the air is coming in from the top. This feeds the air directly into the venturis of the carburetor.
My 302 has a B303 Cam, Edelbrock Performer RPM, 650 DP Holley 4777, max RPMS is 5,500.
I also read old posts about the X-Stream and having adverse effects by sucking fuel from the Carb at higher speeds? I am undecided wether it does or not after at the end. Good reading, but way over my head.
Bud
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