New stroker engine won't start! Suggestions please.
 

As stated in the title, my new LT4 stroker will not start. I've double checked the firing order of the opti in relation to the wires on the plugs. The motor is getting fuel and spark and every once in a while pops, but never actually starts. It has fresh gas in the tank and new plugs/wires.

Any suggestions?

did you put your timing chain correct? i would check that because thats what happen to me.