CREATE TABLE table_44108 ("Model" TEXT, "Years" TEXT, "Engine" TEXT, "Displacement" TEXT, "Power" TEXT, "Fuel system" TEXT)

How much power does the fuel injection system have with a displacement of 1991cc?
SELECT "Power" FROM table_44108 WHERE "Fuel system" = 'fuel injection' AND "Displacement" = '1991cc'
SELECT "Power" FROM "table_44108" WHERE "Displacement" = '1991cc' AND "Fuel system" = 'fuel injection'