Ignition module ground

[8upZR1]

I have had no success but I did notice that wheneve I try to start the motor the A/F gauge reads between lean and stoich. My mustang will only start when the mixture is rich. Has anybody taken a look at the A/F ratio on their ZR1 when the motor is cranking? A few months ago I asked all the various people who burn chips for the ZR1 if they could burn me a chip or two with different fuel settings for cranking and I was told by everyone that it was impossible, or that it would be easier and more cost effective to wire up a stand alone injection system. Does anybody know of a method to adjust fuel mixture on these cars without resorting to one of those Jap piggyback boxes?