Subarubrat, I didnt know you had a DVII with a conversion on it. Cool. Here are a couple........well, all mine are conversions.
Fokker DVII (Balsa USA) with a Briggs and Stratton 34cc four stroke
Fokker DVIII (Well, whats left of it anyhow) with a Homelite 33cc chainsaw conversion (Balsa USA)
Sopwith Pup (Balsa USA) 25cc Poulan Featherlite leafblower conversion
Bud Nosen Aeronca Champ 102" with a Homelite 30cc weedwacker conversion.
Several more in the process of building.
Here are some video's of the Pup and the DVII
http://www.putfile.com/propnut