Some things to keep in the back of your mind........
1....Any chance the cam is timed incorrect? We've had guys mistake the markings on an advance / retard multi -keyway cam drive set
2.....We had one guy who ended up mistakenly with a reverse grind marine cam
3......Any chance the valves are open? Does it have compression?
Compression, Spark, and fuel.
Any chance the fuel is stale?
