Accel alt after eng failed in a missed approach
Regarding the issue of when to accelerate after an actual engine failure in a go around, the notion that I have is that if your company does not have a special EOMAP designed for that runway (because it never does such thing for any runway) then you should fly the published missed approach procedure and accelerate at the missed approach altitude, and not earlier (because the procedure is not designed for level segments, and even if the overall average gradient is better than the gradient required, it might not cover a level off part of it)
In companies which do provide EOMAPs, but in a runway that does not require one, it is supposed that you can accelerate like in the failure case after take-off, with an intermediate level off acceleration segment. The EOMAP is only required if you cannot make it like that. Or maybe it depends on the provider and in other cases, in those runways that don't require an EOMAP you have to accelerate only at MAP altitude, just in case.