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That sounds more like a everyday 425 hp 427 to me. I would think it would have more L-88 or ZL-1 parts on it but it doesn't. The date codes are about as close as you could come to a "COPO" and the intake is a 425 hp with too early of a date is it not?
sounds like a CE motor or one that has been decked so that it would have the "Correct broach marks" ???? ![]()
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70 BM Phase III GT Vette 69 BM SS427 GT vette? 69 L78 Nova 7k mi 73 Pantera 69 Vette B/P SCCA |