Is anyone running a single turbo setup with a Pettit ECU? I am, and at a modest 7 lbs of boost, it is running ridiculously rich, backfiring and idleing poorly.

 

I was running a TO4S with a Pettit unlimited ecu and yes, it was running rich like a ****!!!! if you plan on keeping the pettit ecu you might wanna think about getting a S-AFC to lean out the fuel a bit. I say just get a haltec and call it a day.