Plz help me fix this issue. I've replaced the plugs and wires and distributor cap. It runs fine after I get going but when idling it's like it's camming. And I smell exhaust fumes . Has a hard time starting as well. Plz help.

 

Not much to go on.
But, guessing, could be clogged exhaust???

You smell exhaust and hard starting are symptoms of clogged exhaust

 

welcome to the forum. check to see if your idle cut off is clean.