I have a 99 C5 corvette with manual transmission. I installed a black wing and headers and re-tuned the car. This past week I then installed heads and a cam (224R). I have not run the car for more than 75 miles or so, and ran it with the same tune. The A/F ratios look pretty good. They are maybe a little rich at WOT and in power enrichment mode (above 4000 RPM) 12.4 or so. These are about the same numbers I saw without the heads and cam.
Question is: I am seeing some retard at wide open throttle. On the attached log it appears at Fram 4213, again at 5479, 6122 and 6285. Just wondering if this is normal or there is something I should do in the tuning to correct.
Attached is the log file and the configuration file.
Thanks very much.