I am almost 100% sure it was just fuel, the plug was not black or anything just very very wet and smelled of gasoline.
Yesterday i swapped out the edelbrock for my Holley 650, wich i dissasembled and cleaned more thorougly this time. Did not have time to start it though because it was so late, and my wife does not appreciate my dual 3" sidepipes when she is sleeping.
With the edelbrock on the table i took that apart again for cleaning and inspection. Turns out the float levels are way off, in the top position the instruction says that it should be 7/16 (11.5 ish mm) inches from the carb top to the outer part of the float. Mine was about 0.15 (4mm) inches.
Could it be like this, since i installed the edelbrock i have ran this car pretty hard, i mean really tearing it up. And it has worked perfectly all the time. Until that day when i let it idle for half an hour, thats when the problems started.
Could it be that when i ran the car hard, i managed to keep the floats at a good level. And when i let it sit and idle it flooded and washed the rings and lost compression?
Also, everytime i start the car after sitting for a while. It fires right up and runs good, but after a bit of idling and building temp it starts to run worse and worse.