Right on Glenn, that will be fun!
My friend who built my engine did extensive back to back testing on a 440 on his dyno using FI Tech, a Quick Fuel carb, and a six pack all on same engine. The FI Tech bested everything in both HP and torque. He made it very clear that this did require a lot of tuning of the efi system beyond using only the computer. I'm sure with time and tuning you will see your number of 530. Your Dart will have a whole new personality now!!!!!!
Congratulations again! Dyno days are fun.