This is why Crazy wont be tuning anything soon.
The car would barely run at 9 to 1 and certainly wouldnt at 7.2 . I wont get all mathmatical on you here... but The MAF makes demands that are in the 14 range, getting fatter as you load the motor... GM uses algorithms that help assist in fuel economy for non-load situations in many cases. Bottom line is the Atom has power left in it... I have no immediate plans in upping it, but I do plan to massage whats there. GM/Ariel has promised an update due to some configuration changes that occurred in the intake line as well as exhaust since there last revision.
Wheather I do it, or I wait is up in the air... and I change my mind like the wind. Thats just me.