Jay Bothroyd headed City into the lead inside 10 mins and by the time 12 mins were on the clock it was 2 - 0 as Michael Chopra capitalised on Bothroyds flick on.
The game was end to end with either side looking capable of scoring. For periods City were defending deep as Norwich took control and there was little surprise when Wes Hoolahan pulled one back on 34 mins.
City could have buckled but immediately they were on the offensive and 2 mins later won a penalty. Elliott Ward handling in the box. Peter Whittingham stepped up to make it 3 - 1 and City saw out the half.
As a fan sat in the stand I never felt comfortable all game. On reflection the second half passed with Norwich hardly threatening but still having decent possession. City could have extended the lead with Chopra forcing a smart save from Ruddy and Bothroyd hitting the bar.
The three minutes extra at the end was played out with Cardiff mostly playing keep ball.
Special mention to the Norwich fans. Lovely people, supported their side and gave Bellamy an ovation when he went to take a corner in front of them. Cardiff were 3 - 1 up at this stage.
There was a poor challenge on Chopra that saw the City player somersault through the air and Jay Bothroyd forced a yellow card against himself with a needless challenge. He will miss the game next week against Swansea.
With Q.P.R. drawing (again) City have made it five wins from five games in October and now top the table by two points.
Dave Jones is odds on to win Manager of the Month.
Next up City face Swansea, live on BBC on Sunday November 7th, ko 1:10pm.