Chevy350 tbi flooding throttle body

 

Issue 87 Chevy Silverado
350 tbi flooding throttle body. The truck was only run for a couple seconds the engine was not making noise when I was trying to change the fuel injectors cuz one was dumping the other was tripping and now my oil is smelling like gasoline real bad because. The injector
On one side it the injector pulsates. And the passenger side it's just dripping causing driver side flood throttle body
my truck only has12,176 miles. And because the injector is overloading it's getting fuel into the oil my engine is clanging but never ever did that not until the injector started acting up
I tried putting new injectors in there they done the same thing I tried to rotate them around they did the same thing once prayed one dripped. The truck has never been run longer than 15 to 20 seconds and it never made it clingy noise not until I started changing those injectors only finding out the same results each time
how the problems started the truck was purring like a kitten and then I shut it off until this day this is what the truck keeps doing
I replace the fuel pump I blew the fuel rails out I replace the fuel filter I replace the ignition pickup coil I reset the distributor I installed a new fuel pump relay I put a new EGR valve on I put a new temperature pressure sensor I also rebuilt the throttle body still doing the same thing one is pulsating and flooding the other is just dripping please help me fix my truck