Reference Speeds entry in CFG

I have an aircraft that does not stall till 60 knots. Full flaps, no flaps...doesn't matter.The reference speed section of the CFG reads...&l;Reference Speeds&r;flaps_up_stall_speed = 90.000full_flaps_stall_speed = 70.000cruise_speed = 166.000Question: Does the "Reference Speed" entry control the stall speed in any way? Or, is the stall speed controlled in the airfile?Joe