Mattax said

When the throttles close.

Air at 14.7 psi pushes its way up the exhaust pipe. Hot leftover HC ignite with the input of O2.


So that's 12 degrees at 600 rpm and 35 at 4000 rpm?
Or is 12 degrees at 1000 rpm and 35 degrees at 2000 rpm?
:poke:

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