Doing my first engine “refresh”. Putting in a hydraulic cam in it. What should I expect?

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Pontiac

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For context, this a 400 from a 1975 Pontiac Catalina with a little over 80,000 miles going in my ‘77 Trans am bandit build. This engine has got 6X-4 heads, same as a trans am. The intake is getting switched for an aluminum intake and a Carter 640 CFM carb. Will also be getting aluminum headers soon. What power gains should I expect to see? Could I get away with using the stock valve springs? Anything about these cams I should know about? Any tips and tricks? I’m not looking for a lot of power. I want this engine to be a reliable daily driver but with a little more power and better noise out the back. Thanks to everybody that helps me. Please go easy on me as I’m still a beginner and this my first engine.

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Doing my first engine “refresh”. Putting in a hydraulic cam in it. What should I expect? image

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Autisticboy22

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Posted: 2 weeks ago
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