I have been seeing the below hump in low gear rpm graph for years and just thought it was the converter doing it's thing when the transbrake releases. Tried a different manufactures converter and it was more pronounced. Starting to think its fuel curve related. Thoughts? What can I do about it? 509 BBC big chief littlefield 1471 HHR Powerglide. K valve erderle hat 110 pump. single high speed bypass IMG_2963 by CASEY SPRADLIN, on Flickr above new converter IMG_2962 by CASEY SPRADLIN, on Flickr above converter been using for years Thanks ITA!