Not 100% sure, but I think it would be CRT (LS-5 w/Manual Trans). I believe Hank is right about that combo. Both 454's had around 500 lb/ft of torque and I don't think Chevy wanted to warranty the installation of a TH350 or M21 with either engine. But I could be wrong.
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Uncle Hulka
Red-blooded, American MuscleCar Nut
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