Talk to Andre ar Edge Racing Converters, I have a 9.5" that was built for my 340. It was sent back and went through for my street/strip 408, it flashes 5000 and works great on the street and strip. My Dart is 3260# with me in it and has gone 1.38 60' in good air and will go 1.41-2 in the heat on drag radials.
