**wtb:ported heads,nos kit & underdrive pulley**
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Join Date: Jun 2008
Location: Central IN
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Got a set of 243's ported that flow 320 cfm on the big end. Complete with Comp Cam beehive springs. Seat pressure is about 125 ish. Comes with a new set of stock length Comp Cam pushrods and a used set of GM HP lifters (used about 1 year). $1000 + shipping.