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About Jackson

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    South Texas
  1. Did the vmac I's have torque limiters? Just an thought. Fuel pressure must be good if pulling good at higher speeds. Boost loss due to exhaust leaks could cause that scenario. Connect airline to intake manifold and run through window with 60psi gauge. Can also try unhooking 1 sensor at a time and running it in its default until you have a change. Boost sensor, engine position, engine timing, speedometer. Does it smoke? Are egts high? Try skipping a gear to see if it pulls better.
  2. Was the gauge working. Just curious being im having somewhat of a problem like that with my Ai 460
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