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    New! LS7 Gen IV vs. Supra III 7M or Conversion

    Ok, I know you guys have probably been reading up on the considerably new LS7 427 7.0 small block Z06 engine, 505 hp rated (523 I believe rated by HotRod Magazine) and capabilities of scratching 600hp just from changing over to a set of stage 3 cams, Now my friend owns a 91 Supra 7M non turbo...