Help me find the umph in my 360

Not sure what spring rate you have on the speed master heads.

Like to see a lighter spring rate on the springs for breaking in the cam and lifters.

Once the cam is broke in then you switch out the springs to the recommended ones.

Want to lighten up the load a bit during break in with all the "Chewing Up Cam" problems people have been having at break in.

Single coil springs are better choice for break in vs the double coils.

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