intake manifolds shown to produce 15-25 more hp than any other cast aluminum small block chevy intake motown just when you thought there was no possible room for improvement when it came to small block chevy intake manifold technology along comes world products and this awesome new single plane manifold designed for use in 383 and llarger displacement smallblocks particular attention has been paid to the short turns and a highly effective balance between flow and velocity has been achieved pro engine builders report gains of 15-25 horsepower over any other single 4-barrel cast aluminum manifold what s more a special turtle on the floor of the plenum helps achieve excellent low-end throttle response and performance.the net result is a multi-purpose intake manifold that is every bit as streetable as a dual-plane design but delivers solid power right through the rpm part description range it is truly a best of both worlds situation i 061040 world sbc motown single plane manifold fl
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