front cyls,. not firing on 1994 Dodge Dakota

i replaced the timing chain onmy94 dakota magnum v8(5.2L--318).it fires right up every time but cyls. 1,3,4,and 6 are not firing. i checked the wires and im getting spark but the cyls. are not puzzles me that the front 4 cyls are not firing but the back 4 are. do i need to have the computer reset??

Asked by for the 1994 Dodge Dakota
So you're getting spark to those cylinders but their not firing? Are you getting fuel to those cylinders?