I just bought a '93 SC about a month ago with a broken balancer. I finally got some time to work on it and I got the broken balancer bolt out and the rest of the old hub assembly off the crank - thanks to some of the write up on this forum. I am getting the BHJ balancer and I will need to get a crank pulley at a minimum. Should I go with the 10% overdrive crank pulley? Or is an underdrive set a better idea? By the way the car has a full flowmaster exhaust (No cats)from the headers back with a 1900 stall converter on a rebuilt tranny. The only other mods i can see are a cold air intake. Thanks.