HELP... I purchased a brake conversion kit for my 72 chevelle malibu and I am trying to finish and hook up the lines bleed and go for a cruise but it says to use the supplied combination valve and remove any factory valves and I was looking and following the lines down i see what looks like another conbination valve and I was wondering if I need to take that off and use the new valve like it says or if I can leave that and just hook the lines straight into the master cylinder?? Some help as soon as possible would be great as most of the parts stores will be closing soon for the holiday weekend and I really want to get this back on the road. Thanks,
Scott
6086287410

The valve you found is not a combination valve. Remove it and use the one in the kit.