2001 Buick Century Q&A

2001 Buick Century Question: White smoke coming from my tail pipe but it has brand new heads and all

It's a used car I got it for 800 but that's the only problem I have is the white smoke -
Answer 1
probably a faulty of incorrect installation on the head gasket. -
Answer 2
Agree with gh, is it loosing coolant, overheating? -
Answer 3
agree with gear head or poss crack in cyl head that was over looked -