Even after 23 years, Chevy's Z/28/LT1 high-rise dual-plane in-w take manifold (current "GM service part No. 14044836) retains its reputation as one of the best all-round high-performance dual-planes ...
In most tests on engines up to 6,500 rpm, a modern high-rise dual-plane intake like this Chevrolet Performance example on a Chevy 350 generates the best overall average torque and power numbers ...
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