I haven't found a number for the stock drag rating, looked on Scott's etc. Anybody have a benchmark number?
A good general rule for drag range is ~5lbs of drag per washer when using carbon washers. For example a typical reel with 3 carbon washers has 3 active drag surfaces will make about 15lbs maxed out. I would replace the teflon washer in your reel with a carbon one and grease them with Cal's.