problem is my last motor did exactly what your symptoms are when i blew it up. thing is i really dont think i blew it up because my new motor runs real rough like your does. i lowered the gap to about .03 and it helped 100%. full throttle it runs like crap. tps was one problem on my car and the other problem was i had a backfire that blew up my egr tube. still havent replaced it yet which might be the answer to my problems. my old motor melted the tips off my spark plugs, missed, knocked, timing was bad, and still reaks like gas. also it would backfire throug the intake. try starting your car and very slowly ease on the gas. if it picks up power when you feather the throttle me and you are in the same boat. my car used to throw a air metering cel and cyl4 misfire. since shortening the gap it only throws a egr cel.