Many homebuilt aircraft are rightly considered hot rods, with small airframes and big engines. While Van's Aircraft, by far the volume leader in kits sold today, has not changed the size of its RV-14 two-seat kitbuilt, it has spec'd a new version of Lycoming's IO-390 engine to give it more performance.
This is a companion discussion topic for the original entry at https://www.avweb.com/aviation-news/vans-aircraft-updates-rv-14-engine-options