Mike is this for an HEI, I'm too tired to go out and look up what that part number is for? If it is do yourself a favor. take your weights off and look at the numbers on your center cam (you'll have to remove it to find them). Match up what you got with what is in the chart I fixed up for you guys and see what you'll end up with. "Distributor Advance Curve values" is the chart topic. I'd just use the springs as I won't tell my true feelings about that kit unless you call or e-mail me.
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