Electric issue?

Ok, so today I removed the ECU and using a dremel removed any paint around the screw holes.
I removed the plug from the ballast resistor and noticed they're very "white", don't think it it should be like that. I'll post a picture below.

Yes I did considered flooding but definitely isn't. Thought it was for some time and every time it stalls I would keep the gas pedal all way down and tried to restart. Nothing.

The car just stalls, no sign of losing power of anything like that, it's like if someone had turn the ignition off. Maybe a backfire? Not sure. After that it will crank as normal but won't fire up.
It can happen on the drive, going out of the drive, when I'm about to access the avenue about 200m from home (it's favourite place to stall) or even further than that, being the further place that happened about 1.5 mile distance from home.

I just remembered when that happened once it was just off the drive, I was running late and had to leave the car on the road. When I came back (after about 30 min) tried to start and nothing, just cranking and nothing else. I removed the distributor cap and noticed some "grease" in the centre of the cap, where the rotor touch the little ball inside. Gave it a good clean and wiped a sandpaper in the rotor and it started straight away.