Over working muscles????

[NCNeedForSpeed]

im 21
6' 4
around 210
below 8% bf
wrkin out for 7 years hardcore
diet is perfect never used gear

do you think im over workin certain muscles?
mon- chest n tris abs
tues- legs abs
wens-shoulders n traps
thrus- chest tris n bis
fri- back abs
sat-10 miles
sun- all u can eat buffet

each of these workouts are extremely thorough for ex:
chest i do 4 set bench 12 10 10 8, db incline 5x5, weighted dips 3x10, cable x's 3x10, then a pushup circuit. each muscle group is trained this hard and in the same manor and i have done this workout for the past 6 months and gained increadible strength definition and size. But this workout should be overtraining the shit out of everything.... could i be hurting myself in the long run n not knowing? should i back down n go 45min a day 4 days a week?

[toneloc85]

i read somewhere that everything works,but nothing works forever. so i would change it up every 4 to 6 weeks at least. i dont think your chest routine is too much so may so 12 sets is plenty,but if it works for ya great. may be a typing error but i noticed you dont train biceps. also you train chest again the day after your shoulder workout which i wouldnt do as you could overtrain your shoulders since you will be using them on chest day indirectly.