If you want to be in somewhat the same ballpark as you were with the trenbolone enanthate, then I'd try about 1.5 times as many milligrams of Masteron enanthate. Not that that is an exact figure, or that there is any direct equivalence, but just as a rough guide.
Alternately, just in general (not knowing the rest of a cycle) 400-700 mg/week is a good range for Masteron enanthate as part of a stack.
Running testosterone cypionate at 250 mg every 4 days averages out to 438 mg/week.
With that, the 400 mg/week value for Masteron would be a nice mid-dosage-range cycle; the 700 mg/week value would be more serious but still entirely reasonable generally speaking.
If doing every 4 day injections, that could conveniently be 200 mg every 4 days (works out to 350 mg/week which is still quite decent) or 400 mg every 4 days, which would give you that higher value.
As therajraj posted, testosterone plus Masteron is an excellent combination.