Stillen Air to Air setup

Z&I

When the TQ takes it's nose dive away from the HP curve then it's time to shift or you're just spinning the motor with a diminishing rate of acceleration.
Although with my upgraded Stillen set up I did have improved TQ that stayed to about 6200 which would have theoretically been my optimum shift point.
Didn't get the chance to really test it out though before the motor blew.
Just from 'feeling' the motor that 6200 RPM number was about right.
Ran the motor to 7200 in first and noticed that the rate of acceleration fell off noticeably at 6500.

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