Centri, all the way. Gear the car accordingly to what you want to do, put a simple meth kit on it to raise octane and lower the IAT's.
If you want the hit of a roots/twin screw blower down low, pulley a centri blower down to close or max impellar speed of the head unit, then put a simple blower restrictor on it. Very easy to do at the hardware store. Your boost will come on very linear. Down low, it will hit like a twin screw, but will completely out pull one on the top end. A good BOV in the right place will negate any damage done to the headunit. Paxton(which is owned by
Vortech now) allows this on other builds. It is really the way to go for a blower setup. The torque will be there with a pulleyed down centri blower with a restrictor, but you won't spike the boost. The car will be much faster than an equal twin screw car.