It looks like a fancy version of this serpentine system. Looks like a stage II GM pump. What are your symptoms with the pump? https://jlfabrication.com/products/sbc-serpentine-front-runner-pulley-drive-kit-polished-chrome-a-c-alternatorpower steering pump in picture is 10 years old ,Does anyone know who makes it or sells it
You may be getting air in the fluid. Air in the fluid would raise the level. You could have a leak between the tank and pump on the supply fitting.while standing still and turning wheel the pumps makes a squealing sound .I checked the level which seemed high according to the min max level on stick. I removed some fuild drove it and made it worst .Ichecked condition of fluid which looked foamy .I think the next step is to drian and replace with new fluid since the fluid is 10 yrs old and only has 1500 on drive train . Any suggestion what brand fluid to use.since i dont have a lift i need to have a shop change it .any idea of what the cost may be ?