I have a 13hp engine turning a pump rated at 3.737 GPM at 3450 rpm. Which control valve would be better...a 8 gpm control valve or a 10 - 12 gpm control valve?
I have a Harbor Freight backhoe that I upgraded the engine from a 9hp to a 13hp engine. I upgraded the pump from a 2.7 gpm to the 3.7...