Jeff Scott is right on about home built aircraft.Just use common sense and the adage if they don't ask they really don't want to know.I believe that according to the FAR's if you rebuild or replace a engine you do fall back into the test phase.But that is not a bad thing.It is a good idea on a fresh engine certified or experimental to stay close to the airport for atleast a few hours.Even if it is professionally built.Even the so called experts make mistakes.As for 337 again Jeff is correct,they do not apply to home builts.After your plane is certified the impression I get from the FAA is good luck and don't call us we'll call you.Now that is the local FSDO here,yours may be different.
Bob Glidden Eminence,Indiana KR2S N181FW (building) Corvair 110 glid...@ccrtc.com