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got a piper 285t2 and i love it, got a big turbo so dont ever notice if its off cam, boost starts rapidly climing at 2700- 3000rpm, and holds power to the red line.
It's because the profile is very similar to that of the Kent CVH 35 then was then tweeked a bit to get round copyright. The T2 cam sacrifices power and torque lower down the revs for peak power right at the very top.