I can tell you I had a 96 Mustang motor with 150K+miles I was spraying at the track on the weekends and its still running great today. I sold a 2000 F150 with a 5.4 to my uncle, it now has 160k and is having no problems.
So in all 100k miles is not a lot for the modulars.
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Life moves pretty fast. If you don't stop and look around once in awhile, you could miss it.
-- Ferris Bueller --
