stall/slugglish at startup
 

ok just got my car back from doctor (timing belt , iridum plugs , water pump,oil pump, thermostat,cam seals ) now has stall/sluggish when cold let it warm up slightly and away we GO!! it will fly then. First 5 minutes however it feels like it has no power has hesitation unless floored replaced MAF approx 1500 miles ago used, new way 2 expensive , it was involved in an accident before being sent to the car doctor new hood bumper driver and passenger fender bumper support and bracket. Now it has this sluggishness and i am very very very frustrated !!!:mad: any idea's, i have been i have been fixing the car up could it be pcv or vacum ??