Smoke?

[ZJTurbo]

Whats up guys been a while since I have posted but here is the news. I recently took my motor apart to inspect check everything. While I was in there I put in new gaskets, put in a stage 2 hot cam, 450r carb. Put it all back to gether torqued it all down. Starts idles great but smokes when I rev (white) it but not when I ride it???? Kinds confused havent had time to plug chop it yet. ANy ideas?

[honda400-4-ever]

mine does the same thing when it idles but i think its just because its cold but sometimes when im on a trail and its just idling and i rev it to take off it smoke on occasion though