Help please ...I have an 87 Maxima GXE which is giving me some trouble about pretty much everything. Okay the first thing is lately it has been hard to start and when it does it idles very rough, sometimes quiting on me and it puffs not only blue but black smoke as well but only after I start it never any other time.. Alright the next thing is when going up hills and accelerating out of corners in Overdrive (I have an automatic) my car starts to shake violently and won't stop unless I lift of the throttle or turn off the overdrive, this is very annoying and frustrating when trying to pass people on the interstate uphill. And the finnal thing is I need more power I had my car up to 125 last night but I just couldnt squeez anymore out of it..so I want to go faster in the top end and get there faster, my car is currenty stock with only a Pace Setter exuahst .so any help would be greatly appreciated..also one head light likes to come on all by it self some times, could there be a short in the switch or a loose connection somewhere else?..thanks for the help..