Wont Start, Help

Hi All,

I have a 74 Duster with a stock 1974 440 with stock elec, ignition. It is a low mileage warranty replacement motor I fixed up a little with heads rebuilt with hemi springs new timing set and oil pump. I have been trying to fire this thing for a month. It is a 727 with a working neutral safety switch operating correctly. It will crank and kind of light if I use starting fluid. When I first tried to fire it, I made the mistake the 3 year old gas didn't smell bad until I tried to fire it. So I drained all 14 gallons and cleaned lines out and pulled carb and drained then added fresh fuel. It has a 71 440 HP AVS that ran perfect when I pulled the motor out of a truck. So I started investigating and found only 5 volts to main power to the ballast resister. Ok, pulled harness all apart and cleaned bulkheads connections and all underhood connection with contact cleaner and used dialectric grease everywhere I could. Recleaned all grounds to the motor and body. Now getting 12.5 volts to the hot side of the ballast resister and the start position at run is the 6 volts and 11 when starting. It also was getting no spark out of the coil. I now have good spark to a plug when cranking. But still will not run. It has good fuel,and good spark. I marked the distributor before I pulled it for a cleaning. It is in the exact spot it came from and ran great. When I replaced the timing chain I had the heads off and measured TDC by piston. Used a straight edge and went on exactly the way the original came off. I did pull a plug and it doesn't appear to be wet, but it smells of old fuel. I am going to go get a fresh set which will be a chore. (I have TTI shorty headers) If it doesnt run after a set of plugs I believe I am stumped. Going to also check voltage drop while cranking.