TMX IO-540

This question is really for Mahlon, if he happens to lurk, but if anybody has any insight....

I purchased one of the last of the line TMXIO540 red-golds from mattituck a few years ago, but the material accompanying is really sketchy. I believe the parallel valve 260HPs TMX are best described as a IO540D4A5 equivalent for means of regulatory bulletins, etc, but I can't get confirmation. No idea what kind of components (cylinders), etc. All reference materials gone on internet, and when I contacted Continental, they did not keep any records of the Mattituck builds (surprised me) - if anybody has a similar vintage build and has any confirmatory info would be great

Additionally, I'd like to confirm what kind of test run was typically performed after the build - is an hour cell run standard? I'm planning on first start in a week or so using Mahlon's well described protocol.

Dear Philb

I have the same issue with my TMXIO-360 and Mahlon send me a email that i can use the IO-360M1B reference. So I think you can use these:

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