the cars a 88 lx with a carbed 306 in it, problem is when i go to floor it the car bogs and will stall, its ok if you slowly let into it but if you just slam the peddle it stalls and the carb makes a pop sound, also when i turn the car off and look into the bowls on the carb there smoking a bit, car also feels really sluggish, ne ideas as to what it is?