Start working on vision, confidence, strength. At Lv24, you'll have 4 more EQ points, and Lv32, you'll be at 100, which is all you'll ever need. After Lv32, your EQ should go into vision or strength, whatever you feel is necessary.
yes, 74.3 is enough. My level 58 QB has 74.03 natural throwing. He wasn't cap built though s the build could be better, but he is doing pretty well in the OPL.