need ideas on a rich running 360

I have a 360 in my 64 valiant. It was rebuilt .30 over with a 274 XE Comp cam. No matter what I've tried I cant get this thing to run right! The plugs foul in minutes (heavy black carbon). I've rewired it,changed plugs,cap,rotor,dist,ecm,volt reg,coil,several carbs blah,blah,blah....I reset the manifold but it sounds and acts like a vacuum leak? I just came in from my latest attempt and the engine runs with the jets turned all the way in? It runs but sits there and shakes like it has broken motor mounts. If anyone has any suggestions I WILL listen and try just about anything at this point! Thanks,

Author: admin