I just installed the 12-875 Filter/Regulator hoping to solve the erratic ACDelco LS Filter regulator high pressure issue. The pressure is not stable and ranges from 62-70 psi and not the 59.5 as advertised. My system is the Holley Sniper EFI tank and -6AN lines 100%. Mounted by the tank with a 1 foot return and single line to the front. Tech Support suggested a filter and regulator setup, but I'd like it to be my last resort. Goal is still to only have a single line to the front. I'd appreciate any suggestions.