Personally, I have never had a car that I put one on that wasn't more responsive. More power... well not a lot, but the driveability always was better. Plus with the added electrical power, you can open your spark plug gaps more to create a larger spark.
Now, with a blower or any other forced induction, the cylinder pressure increases (Duh!) So, it takes more electrical force to jump the gap on a plug. So, the MSD provides more electrical power. Hence it will jump the gap quicker and probably will allow you to run a slightly wider gap and make more power with the increased cylinder pressure. So, in short... Get one.
__________________ 2006 Mustang GT in Torch Red
C&L Intake, Evolution Performance Tune, Borla Axle Backs, Hurst Shifter, 4.10's, JBA Long Tubes, Prothane Engine Mounts, Steeda UDPs, FRPP Charge Motion Delete Plates
84 Bronco, 302 C6 on 32 10.50's | 
msd box is it worth it 
i did what i tell others,so much 
