I am working on my friends Mercury Marquis (70.

I am working on my friends mercury marquis (70), I just rebuilt the engine and carburetor, not to mention replaced numerous parts, well I got it to run perfect and great! But, we took it to his friends house and when we were about to leave the battery was dead, so his friend decided to attach a shorted out battery to it ( not to mention the size was way to small) and he hooked up the wires to the wrong terminals, let's just say there was allot of smoke, we took the battery off as fast as possible, but it had fried a wire completely and blown the fuse attached, I rewired it, and hooked the new wires up to the solenoid, but still when I attempt to turn it over the car clicks, it will only start with a boost, and even when it does that it takes forever, it seems like the car isn't getting enough spark, it gets plenty of gas but not much spark, I checked the points and they are set perfectly, I am not sure if it is a problem with the solenoid or wiring (the wires that fried went the the alternator)