Well yes because of the heat soack inside the engine bay like when your only in slow heavy traffic the ECU resets its timining because of the hot air to prevent unwanted detonation in the engine. But once you get going and let the cool air cool of your engine then its back to its normal bad *** performnce again.
To help with cooling the short ram tubes this is what I have done, some how it did help its not as sluggish when I did this simple remedy.
image.jpg
.