well you may have just saved me a bundle on the centrifugal system. I normally stay within the same rpm range when driving as well, just nat neccessarily with full throttle, I also haven't downshifted for fear of popping it at too high of an rpm with a stock tranny and drive train, with the clutch at unknown condition. once I run a built motor/ and tranny then I don't think I'll worry about it as much. I also think some of the lag I felt may be caused my the lack of compression in the cylinders at the time ( 130 was my highest). but since I was reibuilding the motor I thought I would look into the centrifugal sc. from the sounds of it though I would be better off staying with the turbo setup, and maybe after the rebuild see if the lag is still as bad ( if it is then I may step the turbo down a notch), but I am also stepping up the displacement to a 1.8 so that may rid of some lag.

thanks fo the info,