Alright guys, I am not sure where to go with this

before I rule out the obvious

I will start here

I have fuel, carb probally needs a rebuild after sitting for a while

I have spark

I started retracing my steps when I was rebuilding the motor to figure out If I had done anything odd or missed a step

I built this using a great book/soft copy of

BJ Builds An AMC

well I get into the section where it starts talking about installing Cam/Timing gears/Drive gear

I did everything by the book so I thought

I didnt retard or advance the timing so I set the lower gear on the zero mark

this is the step that I got ahead of myself, I honestly didnt pay attention to this. I slid the chain, and gears on as a complete unit

[next step says engage the chain while trying to line up the timing gear marks. The mark on the lower gear should be closet to the mark on the upper gear. Then slide the gear on the cam snout. Look at the gear alignment closely. Make sure the marks are in a straight line with the cam and crank. If it's off, then remove the cam gear, skip the chain a tooth and re-install it. One tooth off is bad news!]

Did I screw myself or what?