What am I missing? Turns over but won't start.

[crazeetxn]

Finally got around to workin on my truck. Had the heads worked on and put everything back together. Went to turn the key and that's when the fun began...

It turns over but won't even think about starting. It spurts gas up through the carb and I did get it to backfire once through the carb. Kept playing with the timing but nothing.

Took the battery up and he said its good. 12v and 800ca. Replaced Holley with an Edelbrock 1406, new fuel pump, distributor cap and rotor, wires and plugs.

I believe there's fire in the wires cause I put a timing light on it and when it was turned over, the light came on. Also checked for 12v at the battery plug in on distributor.

Any ideas?