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Re: csb 350 head swap?
Hey Jrcapral,, I stand corrected,,, I meant to say duration but said lift, huh? thanks for clearing that up as I do not want to offer bad suggestions to anybody.
I think you have "dual plane" mixed up. An intake manifold is either of a "dual plane "design or a "single plane" design. Dual plane indicates the intake runners from the carb on one side of the engine are at close to same elevation before they dump into the cylinder head port. The other 4 runners are cast UNDER the first ones. A single plane manifold has ALL the runners from the carb to the cylinder head ports at same elevation and pretty much symetrical. Tunnel Rams are single plane. Some air gap manifolds are single plane but most are cast as dual plane.
Those are some wicked looking heads!! I love the heart shape chambers= high HP. 300 CFM out of the box,,,, WOW I'm gonna have to look into these to maybe replace my old Brownfield 210's
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