Stock heads are great as is, add hardened push rods, car intake, ls7 cam, good valve springs, headers and you have 500 HP.
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Matt
Project: " Chain Reaction "
A.K.A. " BIG " by wife, biatch in garage.
1969 RS Camaro, L92 T56, Chassisworks sub, Quadra-Link, Bear, Ford 9".
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