I was wondering if anyone has any tips for tuning for opacity snap throttle test. I live in az and have to go through this every year. Truck has always been pretty dirty since the smarty and can't figure what i can change to blow clean.
Mods
bbi stage 1 injectors
80% over II cp3
dual disc
afe cold air and air horn
63/68 .7ar with spool valve
I took a log of snap test reads 68% load and commanding 69mm3 fuel. What are some tips to change to make this right so I can pass smog? The tune I went through with this morning is basically stock with pedal map backed down to 100mm3.