1998 Chevrolet C2500 "98 chevy 2500 spark" Questions

...98 chevy 2500 5.7 and it will not start. There is plenty of fire but i noticed the rockers are not movin. Only way the rockers won't move is if the cam isn't turning. Only way that can happen is if ...

98 Chevy 2500 350 vortex won't start it will hit but won't start put cam sensor and coil and changed the spider to a used one was taking out of running truck crank sensor 72lb of fuel pressure I own a