Any additional classes of any kind, Honors/AP/IB/Regular, dilute by adding to the denominator. The weighting, the best I understand it, is capped at 8 semesters. Fortunately, and unfortunately for the OP, at least the best anyone knows, Cal Poly caps at 4.20 and considers everyone at or above the same. They all get max MCA points. So, it won’t hurt, but they don’t help like they should. The rigor associated with the likelihood of having taken more math, lab sciences and foreign language, will help in the MCA, again, assuming it’s anything like 2013.