Ok. Took 10 gallons out. Drove it to the station. Filled it up with Shell premium with some sea foam for the water. Driving it now. Waiting for all the bad gas to get out the lines and carb. Stopped to idle a little. Idles at 300 and makes this noise.
Sounds like you have a dead cylinder, check and make sure all plug wires are on. Check the plugs see if you have a wet one then you can find which cylinder it is, and go from there.
