Originally Posted by
Miniracer23
Ran my +4 for the first time in a while over the weekend. Was pretty happy with it, but I just can't seem to get rid of the 2 stage idle. It was running about 260-270 all day, in FL, super hot and humid, so I didn't want to lean the bottom anymore. Would going to a 87T vs. the 97T help? Thanks.
Try a hotter plug (77T) and retune.