added calcium d-glucarate to nolva for pct, estrogen overkill?

[abc 1]

i do not use anti-e's during cycles (low doses) and just started pct. i'm using nolva (20mg/day) with calcium d-glucarate, to block the receptors and help with estrogen excretion. is that too much?

also using:
avena sativa
maca
tribulus
zinc
magnesium