Roughly .005

Can’t get the pic to downlaod

I would double check the flywheel orientation (and again, compare with the original).
 
If less than 100' lbs, that flywheel CAN shear the key.
 
I also would remove the valve cover and starter cover. 
Rotate the engine to the compression stroke, watch the valves open and close
and pay CLOSE ATTENTION to the flywheel magnet (should be very close to the coil)
/ all valves fully closed when the engine is at TDC.  You can measure TDC with a thin screwdriver
down the spark plug hole.
 
.

With you having spark, I assume gas is getting the spark plug wet, compression and spark
now, all that appears to be a likely issue is the timing (which has to be dead nuts on).
 
Checking the valve opening and closing, we're trying to confirm valve timing is correct.
Coil to flywheel to crankshaft as well.  
 
Now something not addressed, on the crankshaft(near the sump) is a removable KEYED gear
That gear can come off (and does normally).  That gear meshes with the camshaft and times the camshaft to the flywheel.  If that key sheared, cam to crank timing WILL be off....
 
Shown here on my 18 HP Briggs:

 
 
 

Did you get the pics I emailed you? Will that make a difference that the key way clocking and magnet size is different?

I didn't get any pic's.  I'll PM you with my e-mail address