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I have a set of AFR 190's for sbc. The springs are 140lbs @ 1.810 & 356lbs @ 1.210. I need around 120 on seat & 300 open as i am using a hydraulic flat tappet cam. Would using +50 locks to raise installed height get me close?
 

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With a spring rate of 360 on your springs, you will have [email protected]" and [email protected]". So in other words your seat pressure and open pressure will be 18 less with +.050" in spring height.
 
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