msd or mopar hei ?

chrysler ingnition set up you have is very dependable and is a great choice, if it was myself i think i'd stay with what you have if its not misfiring or not detnating then i'd consider a change but sounds like your not having no problem also side i got a real good friend who's running same type of set up in a pick with a race 440 were talking 7200 rpm and not missing a beat the only thing he did was put a hotter spark box thats it and he races evry weekend with no probs