the bottom cyl should have flares on both ports, because it uses a jumper tube to go from bottom cyl to top cyl on outside of backing plate, and the top cyl should have the bleeder. sometimes they are front of plate and rear of plate not nesacarily top and bottom....in other words line comes into one cyl,,,then goes to other cyl then out to bleeder. and the reason its the bottom one with both lines it air will rise to top cyl for bleeding in theory anyway...
