The whole system has been re-wired to make sure that there is a full 12 volts to the unit. I think we have narrowed it down to an advance plate that is sticky and not allowing the vacuum advance to actually advance the breaker plate like it should. When it's on the car and running you can goose the throttle and watch the vacuum advance... it only moves about 1/4 as far as the point style breaker plate. The thinking is that since it's not advancing like it should my low RPM, moderate-load torque is suffering. They are replacing the unit so we will see what it does with another one installed.
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