Alright heres the deal, I have a 98 cobra the 4.6 DOHC. . . Anyway. . . Okay my voltage isn't centered it goes below the mid point all the time, come to find the car has underdrive pullies, but I thought Underdrive pullies only caused a problem with the 5 point slows? It normally wouldnt bother me, everythings wroking great but I just got 2 12 inch rockford fosgates and an 800 watt amp and an in dash TV, the tvs connected and so far no difference in voltage at all, its those subs im worried about, im hooking them up today. . . I do have a Capacitor, will that make a difference? Reason I'm asking is because I ran 2 12 inch JLs in my 96 GT convertible when I had it and it would never stall but the voltage would go right down to the N in NORMAL on the voltage mark meter. . . and I blew an alternator on it once. . .. Ahhhh so whats your opinons? will I be okay with the pullies? I'd gladly take stock pullies for a trade on these stupid underdrives, they came with the car and they seem to cause people nothing but grief, lemme know guys