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Re: Where can I find tuneup specs for 1970 402 (LS3)?
FWIW, I found my reproduction of the emissions decal that says 600rpm and 4' BTDC, so that's a start. But if there's a canonical section in any manual with all the specs, I'd still like to find it.
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1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
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