Engine knock

[427TJ]

Hmm, tranny fluid or water? (I remember old USAF KC-135A refueling tankers used water injection to get off the ground when fully loaded and the black cloud from that was incredible! That smoke trail made them easy to follow.)

After pouring that Seafoam stuff down the carb it is running better. There was a gray cloud of smoke after I did the Seafoam treatment and revved'er up a few times. I checked the timing and then took the car out after dinner tonight and it's running great and the knock occurs much less often.