Timing problem

[8upZR1]

After fixing a blown head gasket on my 90 it has been unable to start. Many good suggestions were made on the other thread I started. Today I cranked the car with the plenum removed to check out the injector spray pattern and I was greeted by combustion from the injector housing ports. All 8 cylinders are firing, its just that the combustion occurs in the ports and not the chamber. Can anyone tell me if this is an ignition timing issue or if this is a cam timing issue? I am stumped.