Trying to set the timing on this car with a new engine,please help.

Timing belt replace v6 engine turn the crankshaft clok wise slowly and make sure that nothing is stoping it for turning, until the key on the mark reach 12 o clok (TDC) the piston no 1 is att the top dead center .if the piston stop before reaching the top dead center ,,,,,one valve or two are open and the cam have to be ajust so dhat valve can close up,,,,,, so after the crank alignement ,the two cam marks at LEFT CAM 2 o clok right cam10 O CLOK ,,,note the belt slack must be on the tensioner side