61 cadillac ignition issues

I have a 1961 cadilac series 62 with a 390 v8 in it ive replaced everything under the dis. including the dis. cap and coil. I have spark coming from the coil and from the points and the carb. is pumping gas to the motor but no matter what i try i cant get it to start. the engine has not been rebuilt yet and it ran about 6 months ago before i bought it.

Are you getting fire at your plugs ?