I have a DP 330L with a 2.18 glow in it and its awesome.

Check this out on Dave Patricks own website

http://www.davepatrickmodels.com/tea.../engine210.htm

He has custom mufflers made that exit the cowl for both the 330L and the 540T.

Heres a few people who sent in pictures and specs on their 330L and 540T.

http://www.davepatrickmodels.com/gal...anon-extra.htm

http://www.davepatrickmodels.com/gal...AVIS-extra.htm

He might state that the plane is a 120 size bird but its much bigger then any other 120 i own.
The reasoning behind the 120 claim is this plane has had issues with aileron flutter and putting a engine more then what he specifies only increases that chance.

He goes into detail explaining how to prevent flutter here.

http://www.davepatrickmodels.com/dpm/extra/notes.htm

Hope this helps and have fun with your 330L, its a nice flying aircraft.

John