stock pcm and split second are capacitive analog computers much slower then DFI's digital transistive...

he thinks that with my set up which is capable of over 500whp, is too much for such a primitive slower style computer to compensate and keep up.

with the DFI you can switch the ignition from waste spark to a squential spark system and run 4 individual coils or such to tune each cylinder for spark, and yada yada, their are benefits however the DFI unit is close to 2400 bucks, plus sensors, then i still have to have it tuned like the situation i am in now.

plus the DFI is a learning computer, it has a base map, and as you dyno it, it compensates fuel, then you just go in and add and take away fuel where it tells you to and how much, same with the spark... (so i am told by this guy i dont know much about it).