slap(A)hoe

iTrader: (2)

i got a new motor in my car it has h/c/i and it has been tuned the injectors are stock the car is a 98 z28. I have been smelling a strong odor of gas for a couple of weeks so tonight i changed the oil and decided to change the fuel filter in the car as well since i couldnt remember the last time i did it. So i crank the car up and let the oil circulate thru the engine and about a min later my car just cuts off like i turn the switch off i tried to crank it again and it was flooded wouldnt crank back i took a couple of plugs out and they are sut black and dripping with gas i do have a 255 walbro pump in the tank i dont know where to start looking to see what is causing this i need some help thank you in advance for all your suggestions!!