My cholestrl overal is 170 mg/dl - hdl - 43 ldl - 104 - triglycerides - 106, how long does it take for heart artery plaque buildup? shld i be concrnd?

Not really: Your numbers are within normal limit given your age in certain situation cholesterol build up starts in womb in patient with familial hyperlipidemia, usually these patients have very high lipid levels. In an otherwise healthy person build up may begin in adolecent years as fatty streaks and the rate of build up depends on their diet, exercise, family history and the onset of disease e.g. Diabetes.