Hi Waken
According to Russian source SM-79B was equipted with two 950 hp Gnome&Rhone K14 Mistral Major engines( it is mentioned that some could be equipted with licenced romanian-built K14 900hp ones).
max speed - 420 km/h
range 1600 km with 1250 kg bomb load.
crew 4-5
weight empty 6590 kg
armament 3*12.7 mm Brada-SAFAT MGs or 4*7.7 mm MGs ( sources aren't conformable )
bomb load 2*500kg or 5*250kg or 12*100kg