Re: underdrive pulley
An underdrive pulley is just one pulley, on the crank. If you are concerned about the alternator running low at idle (this will be the only place you should see problems) get an overdrive pulley for the alternator and you'll be good to go.
"I'm not driving too fast...just flying too low"
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
90 7up vert - new project-07 DSG Focus -DD