Comparing a Whipple and a CSC is like comparing apples to oranges...totally different setups.
Also...maybe a roots blower USED to be better for boost than a turbo...but with advancements in hair dryer techniques...that statement is no longer true...ceramic, ball bearing, variable vein...so many things you have to take into effect...Acura's new turbo powerplant they use in the RDX along with the new Porsche 911 Turbo...all have no lag...and don't take power to make power.