holley q?

my primary throtle blades when closed are open about 1/8'' is that to much?car runs rich at idle just going by smell and it will burn your eyes if you squat behind the exhaust.runs going going down the road and dosn't fall on it's face when you get on it even from idle. by the way it's a 750 dp 69 and73 jets and the power valve cheks good and is a 6.