Ok looking for your thoughts, I am working on my 68 charger just pulled the tired old 440 that was a band aid for the car while the 383 was being built. I am nearing completion and want to put the most carb I can on the old girl with out putting to much. So what I have is a 383 block .60 over 440 source balanced stroker kit. 440 source aluminum heads with the upgraded valve springs and seats. Roller rockers from 440 source again. Pro comp cam .545 lift 110 degree lobe separation. Edlebrock high rise single plain entake. MSD Ready to run distributor. I still have to get plugs and a carb because I just dont think the holley 670 is going ot cut it. The engine builder said I need a medium heat spark plug (not sure what that means) but anyway I need ideas for the right carburetor. Keep in mind the ready to run distributor has a vaccum advance and the hide away head lights also use vaccum to open. I have heard of people using a cable to open those but never actually seen it. The one wrapped up is the 383/496. Please shoot me some ideas I dont want it to be limited by the carb but I dont want to get more than I need.