Borgeson box to much pressure?

I installed a borgeson box 14:1 on my 67 Belvedere I re-used my Saginaw pump. I took out the 2 shims as per a write up I read in the power steering pump. Upon start up I turn the wheel and it just goes crazy. Take the pump off add the 2 shims back in and same thing. I touch the wheel and it just goes wild.
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