This cam became surprisingly in need of a lot of valve spring to control float. 90 lb on the seat and two 260 ish on the nose were only good for about 4000 RPMs where severe valve float began. I really couldn't believe it and thought I was possibly having a fuel problem or ignition problems and dinked around with it for too long trying determine the problem.
I even shimmed the springs up and noticed a slight improvement. So I remove the springs one more time.
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