Why won't my car start? on 1998 Nissan Sentra

1998 Nissan sentra 1.6L manual won't start. Replaced the head gasket because of low compression. Everything is plugged back up where it belongs. Not sure what else to try. Any advice?

1 answer 1 comment
Check for spark at the plugs, fuel and compression! Chain MAY have slipped on the crank gear when setting cam and is now out of time! Check timing marks again.
Was it running before this work?
It was running before this. I've also changed the spark plugs and I installed a new cap and rotor back in February