i ran up on a mr.gasket 105 gph vane type pump..looks like a holley knock off,,my ?? is it came with a regulator,,says it has 14 psi max,,,the regulator has 3 places for lines im guessing 1 for in ,,1 for out,,and the bottom one is for what?? a pressure gauge or a return line,,i dont have either,,can i just plug off the bottom port ,,and how would i set the regulator,,is clockwise less or more psi on the set screw?? thanks,,,