If I am going to run proviron with my test e and dbol cycle, when should I start it, dosage and how long?

CYCLE
wk1-10 500mg Test E ew
wk1-5 30mg dbol ed
Proviron???????

PCT
wk13-16 Nolva 20mg ed I had thought about doing 40/40/20/20 but didn't know if it would make that much of a diffrence?
wk13-16 Clomid 50mg ed

Is their anything I should maybe change in the cycle also? Thanks