I was just going to say, hasn't anyone heard of or seen the Cougar eliminator!?
bret it works the same way as the vortec, except it's a roots type SC. Basically some custom plumbing to get the air into the uim. I don't think it makes much of a difference whether or not the blower is on top of the motor, as long as the air gets there.
Hopefully some people will copy what's been done with the cougar, really cool stuff