DIVs right--you need an anti-aromatase like letrozole or arimidex to block the conversion of test to estrogen THROUGHOUT your cycle, not an estrogen receptor blocker like tamoxifen (nolvadex) which just blocks it preferentially at the breast area. Nolva is fine on top of an anti-e if gyno starts to appear, and usually just about 10mg per day for a week or so will clear up the gyno. I like Arimidex.
Lay out your full cycle with your ancillaries for us. You should also have hcg going at 500IU every 5 days throughout to protect your nads. What is your post-cycle therapy plan? Do you even have one?