You can put a diesel V-8 in a cigar box and it will go like mad. Seriously though, how much you can "over power" you airplane depends on a lot of things. #1 structure of the engine mount and firewall. #2 what is the altitude of the field where you will fly. I fly at 5000' ASL and have put .15 engines in a QT that is designed for an .049 after adding a bit more wing and tail feathers. It flew great.
Usually you will find engine size listings on the kit or somewhere in the instructions. I have always found it more efficient to use the largest sized engine suggested. If you fly from a field that is over 2000' ASL you could easily support a .35 engine. If it's a hot day even that may not be enough. If you are a full scale airplane driver you know how to determine pressure density altitude. If not it might be worth the study. Much good luck !