5.7 hemi rough idle and low backfire out exhaust any ideas

you are absolutely correct i mistakenly said i have a mass airflow sensor when i actually have a map sensor and i did email chris about the problems and he suggested i disconnect the battery to reset the computer and see if it helps the problem. also the white smoke disappeared when it warmed up so i think what you said is also right. chris also suggested i have it scanned and see what the air/fuel ration is so i am looking for a scan program that will do that. also i do not have the second set of o2 sensors because i dont have cats on this car