Supercharge Or Turbo?

Installed a DSC1 Supercharger Store blower kit on the 71 Duster EFI Slant 6. Even with a 5000 stall converter she's pretty much a slug coming out of the hole. 3105 race weight with fuel and driver. High 1.60/low 1.70 60 fts. With our data logging it takes 1.4 seconds for it to hit 5000 rpm. Time for a trans brake. lol, but first we'll play around with launch techniques. Even though it was our first and only outing in 2010 for the Duster at our local 1/8 mile, she did run a best of 7.19 @ 98 mph.