Smoke coming from spark plugs

So I recently got my Jeep jku (3.6L) diagnosed after getting a strong gas smell, and they told me it was one worn out spark plug allowing excess gas to escape. I bought OEM champion plugs and NGK coil packs and just replaced them today, and after going for a 10 minute ride I noticed 2 things the smell is still there and there is white smoke coming from the port that had the faulty plug. Do you guys think the smell will go away / burn off over time or what?