l have a throttle body on my camaro and its dumpin to much fuel into the engine l put athrottle body on that l took off one of my dads old buicks......... both the buick and the camaro have 350 is in them........anyway itsstill doin the same thing what could b the cause

the throttle position sensor may not be getting enough volts thus the computer thinks its not open enough and it compensates for this, try using a volt meter and checking the voltage put out by the red wire on teh throttle position sensor it should be between 0-4 volts.. im not a chevy guy but this is how it works on my mustang, the tps should be right on the side of the throttle body

Fuel delivery volume is decided by the engine computer. It looks at various sensors and determines the correct amount of fuel to be injected. Since you have replaced the throttle body you can rule out the pressure regulator and the injector(s) and the throttle position sensor as being possible culprits.

TPS or oxy sensor.

Its only dumping to much fuel probably because the computer is being told to .most likely cause is a coolant temp sensor that is bad,or a TPS sensor out of range,a scan tool is a must when diagnoising these co ncerns.

check or change temp sensor on intake manifold it controls mixture and the fast idle when first started cold what make you think to much fuel does it run rich and smell rich or is it your looking at spray from injectors with air horn removed the spray will noisey and look way to much but be ok ck fuel press tbi is only about 20 lbs not tpi press