which pwr steering pulley for a Newer 350 small block? allignment problem

[darkone]

Hey all, looking for some help here. Apparently I have a slightly newer 350 small block than what came standard in the 70 c20 im driving. Anyway, my pwr steering pulley grove sits right in the middle of my 2 grove Harmonic ballancer pulley groves. My question is, does anyone know what I can pull a prw steering pulley out of to make these groves line up? Ideally i would like to move the pwr steering groove back abour 3/8ths, but forward the same distance would also work probably. Any input appreciated. Thanks in advance for any help!
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