ok i have a 88 Gt speed density, installed the explorer upper/lower today, now besides the lack of power (i suspect timing) there's a problem with charging, usually cruising on the freeway/around town it'd be about 13 (volts?) now it's right around 10 at all times, at idle around 8.... why would this be happening? also i think i have a vaccume leak somewhere, the idle's going crazy .... i'm really fed up with the car right now, it was a long day,