Underdrive pulleys for street racing

[SMoKEDya95Stang]

Actually Underdriving the accesories has everythign to do with "underdrive" pulleys....
Its the whole point of it. Yes less weight is a good quality. But think of it this way.
A smaller pulley will take Less revolutions, to crank the crankshaft
THAN a Larger pulley.

Also by that it underdrives other accesories. It "robs"
needed power from accesories that able to speed of the pulley to be faster.
Removing a HB is a bad thing
if you do that your crankshaft life will be diminished they are there for a reason....