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We called on GMCOPO to help us deal with the computer part of our computer-controlled equation. The chip we received has a high-performance spark curve, an improved carburetor duty cycle, and revised toque converter lockup specs. Also sent along was an '87 G-body-spec ECM. We included a 180-degree thermostat and a lower-temp fan switch. GM doesn't service the part anymore-pick up a switch for a Grand National and you'll be OK.
1984 Chevy Camaro - Power Struggle

 We called on GMCOPO to help us deal with the computer part of our computer-controlled equation. The chip we received has a high-performance spark curve, an improved carburetor duty cycle, and revised toque converter lockup specs. Also sent along was an '87 G-body-spec ECM. We included a 180-degree thermostat and a lower-temp fan switch. GM doesn't service the part anymore-pick up a switch for a Grand National and you'll be OK.  View Related Article

 

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