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You mentioned that you found some contaminant in the injector nozzles.  Based upon my experience you may continue to have injector nozzle problems
for several more hours.  Watch the EGTs for changes in peak temps one
compared to the other.  Changes indicate more injector nozel contaminants. Also check the throttle body fuel screen frequently until no contaminant is
found and then every 50 hours in accordance with the manufactures
recommendation p362 LNN Issue 28. A complete clogging of one nozzle may cause an engine stoppage due to an
over rich condition in the remaining cylinders which can be corrected by
using the mixture and leaning for the three cylinder condition.  It is
natural and correct when experiencing engine roughness and stoppage  to
richen the mixture.  However, in the event of a 100% clogged nozzle and
resulting engine stoppage, leaning is the only remedy that will result in a
restart.  Watch for this situation.

A high percentage of the low time Lancair incidents 320/360 and IV are a
result of fuel contaminant problems.  There is an article about this
subject in the Lancair Network News page 361 Issue #28. Jim Frantz

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