NPP is nandralone phenyl propionate, fast acting deca sort of speak
75mgs every other day would be good for the trenbolone if you are talking about tren acetate
the fast acting version you are talking about is trenbolone acetate
the longer acting version is trenbolone enanthate
tren enanthate will be good at 400mgs a week but it will take about 4 weeks to show its full effect due to the long ester (enanthate).
tren wont add a lot of mass but it will harden you up and is one of the best steroids for strength gain. is you are going to use testosterone propionate you are going to have to do frequent injections so anything over 8 weeks will be an asbsolute pain in the ass, especially with the tren acetate in there as well.
tren is killer on the libido, i typically have to use a larger amount of tesosterone to combat this...
tren acetate- weeks 1-8 75mgs EOD
test prop- weeks 1-9 or 10 100-150 mgs EOD
that would work, and give more gains, or
testosterone enanthate- weeks 1-12 600mgs a week
tren acetate- weeks 1-8 75mgs EOD
id go with the second, a lot less pinning, this would be a lot smoother