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My Ls7 built by Lingenfelter: aluminum block, forged pistons, treated titanium rods, treated crank; “bump-stick” BTR wild-cat cam; heads upgraded GM Ls7 by Lingenfelter performance -ported, polished, shaved; MSD intake gasket matched; 103 TB; “2 LT’s; P1X PC w/“4 pulley at 7.3 lbs.RPM tuned.
Tuner recommended meth route.
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