I've just started building an ARTF called Arising star. However, the engine mount doesn't seem to fit my engine. The engine is supposed to be fixed by 4 screws. The distance between the holes on the engine mount and the engine isn't the same, on the engine the difference between the two holes is about 2 cm, while the distance on the engine mount is 4 cm. Is it enough to fix the engine with two screws (one on each side)? Or should I replace the engine? The engine is a SC40A (Aero RC ABC Engine (MkII)). As you can probably tell I'm a total newbie

I have only used an electric slow-flyer before, this is my first glow engine aeroplane.
Thanks for you help!
Tom