Re: 70 Chevelle build sheet ?
I have never seen the "dual RPO" codes used on a L34, but the time frame your car was built (12-01) and in Baltimore make it seem logical. The hypothesis is the dual RPO codes were used in late Nov-early Dec of 1969 at Baltimore as that is where 454 production started..hence a L78 car could be used as a LS6 and now with your sheet quite possibly a L34 car could be used for a LS5..At least that is the idea.
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