Cel flashing after filling tank up

[Scottyp40]

I replaced my coil packs and spark plugs about 2 weeks ago in my car. The first two weeks the car drove just fine but one night while driving I decided to flood it and have a little fun. Out of nowhere the car felt like it lost almost all power and when I looked down the cel was flashing. I instantly slowed down and the light cut off. I just drove home at normal speeds and it didn't flash again. Now as soon as I crank the car the cel will be solid but as soon as I start driving the light will cut on no matter how I'm driving. But the weird thing is if my gas light is on the light don't flash. As soon as I put gas in my car the light will stay flashing unless I'm at a complete stop. While it's flashing the car feels like it has lost most power and it hesitates very badly. Since this has happened I've parked it and I won't be driving until I figure out what's wrong with it. Had the codes ran and it was p0300, p0172, p0171, p0302, and p0308. Any help will be appreciated

 

[RaggedGT]

Welcome to Stangnet,
For starters-Three of your codes are Misfire codes-random misfire-cylinder 2 and cylinder 8. I believe the other codes are lean on bank 1 and bank 2.
I’d start with the two specific cylinders and check the new plugs and coils,and work your way up from there.