So I just installed a new weber carb on my 81 accord and I was adjusting the mixture and idle and the car was consistently running for almost 20 minutes, during which the inside of the cabin started smoking and I went to touch my shifter to engage in my gears and it was almost on fire. Also, now the shifter feels as if it has some sort of up and down play in it and the shifting it super rough through all gears. I took off the boot and a rubber piece from the shifter had melted down and it was scolding hot as well.
What could even cause this? Maybe the cat was clogged and the heat from that made my shifter linkage and everything around it start to melt? I have no clue what to do ... I've only had this car for a month or so. This is the first time I've had it running for longer than 15 minutes.