72 Auto Fatback 1600, Non Fuel Injscted. I am having some major problems keepinng my motor running, I know the plugs are sparking, there is fuel goin into the carbies, I removed them and cleaned them out, The motor starts ( sometimes ) but just won't hold its revs...... Im at a loose end of what to do next, any ideas

Check for air leaks on the intake system,check valve adjustment and timing.Whas it running OK before you did the carbs??:P

I had carbies problems in the past, so I thought a thorough clean would eliminate them as a problem.......

is your point gap correctly set?
Steven