camshaft for superbird

hi guys
i need a cam for the bird,would like to have the same as in it or very close.im looking at a mopar purple cam,but find some negatives on this cam,any one tell me what i should have,also need enough vacuum to run the brakes and light doors,im not sure what purple would be the best or what cam would be better ,any ideas will help me decide what way to go on my 440 hp 6pak,,i check the \original specs on the 440,s and noticed both the 6pak and 4 brl used the same cam thanks a lots bernie