In article 000f01c7e25a$7191c0e0$4b01a8c0@omnibook6100,
"Jim Carter" wrote:

Other than the JPI EDM line of engine analyzers, what other
manufacturers are out there with good, reliable, full featured products
for a big bore Continental?

What about the Insight family of graphic engine monitors?

http://www.insightavionics.com/gemseries.htm

--
Bob Noel
(goodness, please trim replies!!!)