My Rube Goldberg scoop on my O-235. It needed the extra supports due to the flex connection at the carb heat box. No idea if this is applicable to the O-290. The flex connector was part of the set-up from the Citabria the engine came out of and I just re-used it.
Custom instrument panels are now available directly from Zenith Aircraft Company exclusively for Zenith builders and owners. Pre-cut panel, power distribution panel, Approach Fast Stack harnesses, Dynon and Garmin avionics, and more.
Developed specifically for Zenith builders (by a builder) these videos on DVD are a great help in building your own kit plane by providing practical hands-on construction information. Visit HomebuiltHelp.com for the latest DVD titles.