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Talked with Chevrolet here. They haven't had a LT4 car recalled yet. Talked with Hennessey who confirmed my stock single springs have been replaced with PSI dual springs (which I might have to discuss with a dealer someday)
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2020 ZL1LE A10.
LME LT4 390 short block, LME CID Heads, Kong E2650, FBO.
15" conversion, MT ET Street R 325/15.
100 octane: 1045hp/1055tq.
100 octane + Meth (1x10+): 1117 hp/1067 tq
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