My car runs, not smooth but it runs. Every time I turn my car on fuel(raw fuel) spills out between the flange and the exhaust manifold. I changed the front three injectors from a junk yard, i checked the plugs that connenect to each injector and they work normal checking to see if the computer was telling it to stay on. Next im going to try to change the injector seals hope this works. Any idea why its doing this?