Chem Sat2- before or after the AP

<p>I am in the top honors chemistry class at my school. i am getting good grades. all in the 90s. i am taking the chemistry AP next year. should i take the sat2 this year and get it over with? or will my scores significantly improve if i take it next year. (i only want to take the test once- and of course succeed). if i take it next year, will i study much less if i am already studying for the ap? i am so unsure. please help!</p>