Hello  Members   Anyone here have any advise on using a borgeson PS box with stock eaton pump on 57 car?  Have ask around over on 57 ford site with not much luck. Borgeson box require 1000 psi and stock pump max 900 psi and 2 gal/min (ford cook book). Was thinking shimming pressure spring a little (like we do on oil pumps) to get it up. Fella over on 57 ford said he tried it but pump ran too hot but he didnt know what PSI was. Was thinking it was over shimmed. Any thoughts on this might save me time and mess. Thanks