I suggest you call a convertor guru and have him explain it to you. The data on the PL file tells you what it's doing. Reply 148 I explained what it did on the last run...and on reply 152 Steve explains how to loosen a convertor up. Again, my convertor was incredibly tight...but with low gear tuning I could get it to flash over 4 grand...but... it would blow the slicks off it. It was a fine line.