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I did some test runs today and im wondering why im not showing any KR. i did three runs and plenty more wot runs on the interstate. The first run i maxed out at 1.9 degrees KR but after that it was zero. on all wot runs i maxed out at 37 degrees spark advance.
IAT maxed at 90 degrees and all other data recorded correctly
no dtcs at all
any info or advice is greatly appreciated

I am running a 1997 Buick regal GS
drilled 180degree tstat
105 autolites
cat and u-bend delete with 2 1/4" pipes and a glass pack with stock DP
stock air intake with k&n drop in filter
 

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You could always try a different scan tool to double check the results.
It looks like the mods that you have done so far are working well together, you really don't want the PCM to pull timing due to knock.
If you are going to mod further (ie. pulley down) it might be time, just scan after you do.
 
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