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Potential Tuner
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Advanced Tuner
Here is a tune from a 2000 Impala 3.4 you can look over and compare. I left the Ignition Timing Stock in this tune. Transmission tables are just as important as Engine tables to open up the driveability potential.
2000_Impala3.4_tuned.hpt
If you want more powder (tune above does open up the power a little with out touching ignition timing), you'll have to scan for KR. If you have no KR at full throttle with the gasoline you're using, you can up the timing 1 degree at a time until you see KR.
Once you see KR, you can either leave the timing at where you have no KR or use higher octane to help with the KR.
I personally find 87 octane most beneficial if you have no KR in these Naturally aspirated motors.
Last edited by ZeroBoostBuick; 06-02-2019 at 10:54 PM.