Amount of mgs for EQ depends a lot on your previous cycles, and steroid experience.
My first cyle with EQ, I felt like shit the whole time, nausea, loss of appetite, bad cardio, anxiety. I was only doing 250-350 test, but front loaded 1200mg of EQ for the first 4 weeks, then 500mgs /week. I think that was the killer, but it still gave me good gains.
I was put off EQ by that experience, a couple of cycles of other gear later I tried EQ again. This time no frontloading, just 375mg of EQ, and 200mg of test. I had no problems, good gains, from a relatively small amount of steroids, cardio was sensational.
I'd be conservative stay at 400mg of EQ, see how you go on that for one cycle. Then If you have tolerated the drug well, bump it up to 600mg/week, for your next cycle.