The amount of nandrolone you are taking is too high, you will not actually make more gains in the way you probably think you will.
Many veterans and nandrolone users will tell you that anything over 600 really doesn't do anything. Even the top IFBB Pros at their peaks will not use more than 1K and they are already being capped out to their limits.
Drop the Nandrolone to 600 unless you just want to essentially "waste" more oil and money. I know it sounds counter-intuitive, but trust me...
Other than that, I personally hate dbol and think anadrol is excellent. Anadrol puts on more strength AND size IMO - but that's the thing... it's just my opinion.
People swear by one or the other and get better/worse sides and gains on one or the other.
Based on science of synergistic effects, test/nandrolone/dianabol SHOULD yield better gains than the anadrol because of the wonderful synergy between the drugs.
Dbol "is" better if you want to look at it that way, but if it was me in your position, I would still just find out which is better.