Anyone ever pull the plugs to find 1 look brand new? No heat on the strap at all. The other 7 look good. Have a few street hits on them and about 100 miles. SBF cylinder 5. It is holley efi, crank sensor only. Cylinder has spark also. I pulled the injector plug off of #5 and there was very little change in idle. Pulled it off of #6 and there was a very noticeable difference. Put the #5 injector plug on the #6 injector, back to normal. Could it be the injector isn't completely flowing the correct fuel or any fuel for that matter? Went over all the wiring, made sure it was all correct back to the ecu. Car starts fine, idles good and feels strong so I am kind of confused whats going on. All cylinders have good compression. Last time I changed the plugs they were all pretty even for the most part. With a temp gun 1" from the head all cylinders were 380-480 degrees at idle except for the clean plug. That one was 200. Already removed all the injectors to get them checked out.