i saw a 200sx at a stoplight beside me. his car was stock, mine isn't. i revved my engine to 8000 rpms twice just to show off. when i turned off my car, and came back to it 10 minutes later, i started my car and it made some very strange screeching noise, but it wasn't the belts i'm sure. half an hour later, i went to a gas station to stop, and when i tried to turn on my car this time, it didn't turn on, but it was trying to as if there wasn't enough power going to it. it also made a light buzz when i was trying to start it. i tried again the 2nd time, and it barely started. after driving for a good hour after that, it only made that buzz and high pitched sound one more time when starting it. oh, and the next day i drove it, there was the smell of burnt electrical coming through the vents that lasted only 10 minutes and it has never came back. i'm wondering if i burnt something, or messed up something in my car. please give me some information, because i did this a month ago, and so far i have no problems with the car yet.