Questions on ZZ4 engine

[72farmer]

I have a ZZ4 350 that is in great shape with low mileage.I am thinking about putting it in my 67.The 67 already has a 700R4 trans.I want a lumpy idle but don't care about performance.I guess I want a drive or a cruise in cam.
If I just change to the Mutha Thumper cam and leave everything else along will it perform almost as good as it does now without cam swap? I may not have enough vaccumn for brake booster and I may have to buy a stall converter.But I want the sound.