Who has made the most power NA through LS6 heads, and WHO did it??
01-11-2004, 07:16 PM
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01-11-2004, 08:02 PM
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Trahn Zam was making 517rwhp for sure the last time I talked to him in his all bore 397, and he later told me he was making 530rwhp with some new mods, but I never "proof" of this last claim.
