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Re: 396 Cam change for 1971
I do see gross horsepower dropped by 10 to 300hp for 1971. I like that in the heritage center docs they list gross and net, so you can see what the difference actually is.
Anyone find a reference on what the compression change might have been, or if the cylinder heads changed? I can likely find it, but is a forum, not a monologue!
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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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