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Old 09-08-2021, 10:30 AM
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Jay S Jay S is offline
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Join Date: May 2018
Location: Nebraska City, Nebraska
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Yes you are correct the edelbrock’s 5845s are a dual spring. I looked at the wrong column, springs per cylinder.

A compcams 978-16 spring would be a better choice than the 5845s. 400 lb/in spring rate versus the 460+ lb/in of the edelbrocks. Ideally you should be 370-400 on your spring rate for the new cam, 150 seat. The 5845’s have quite a bit higher spring rate than you need. Over 130+ higher spring rate than what you have now. Like killing a fly with a hammer. Collapsed lifter waiting to happen.