MSD Atomic EFI

Installed on a dog-pie chevy...285 hp/296 at the rear wheels on a carb...picked up almost 29/26 with the EFI and smoothed it out considerably. Dead head fuel line too, so no return line. Temp, O2 and fuel, thats it? How much? [ame="http://youtu.be/zM7Fl6XQ7m0"]MSD Atomic EFI[/ame]