Car is original I think and has only 1 converter on one of the pipes underneath.

Could it be that the back pressure from a bad converter can also cause the exhaust gasket to blow because only on that side I have a gasket leak....

As I press on the gas I feel more heat... At idle it is just warm....

Blower motor is off.

Are there any vents that could be open on the floor...If so, I sure can't find them....