Hello, I’ve recently installed a Edelbrock 7564 RPM Air-Gap 351-C Intake Manifold and installed Headman Headers long tube on my 1973 Ford Mustang Convertible 351C 2V and when I start it up it idles super high and when the car drives it doesn’t kick down until I let off the gas. When I pulled over it appeared that oil sprayed everywhere from the sending unit in the back of the manifold however, I just replaced it because the other one was doing that before I replaced the manifold. I already...

1973 Mustang Convertible 351c running problems