Just got all the work done timed it at 12 degrees and can't get the thing to idle for Me for a long period of time. It is a mechanical distributor. I have the firing order correct. Also when it does idle its rough and drops when I hit the gas unless I slowly go down and increase throttle

 

Vacuum Leak? Electronic ignition?

 

I checked for leaks did not find any, and it was a kit that came with everything. I'm thinking maybe the timing is off I have mid grade gas in the tank. Is there an easy way to look for leaks I may have missed