clickity clack, my engine goes smack

[kjc292]

alright, i tryed everything im capable of. thinking about taking it to local mechanic down the street. guy at work says hes cheap and does good work. if anything he might be able to tell me exactly what it is. its frustrating its keeping me from driving it. i know its not good to keep driving it. if its a cracked exhaust manifold ill probably switch over to headers... if not and i need to take the head off and get whatever fixed i have a head off a 1967 292 thats lumped ported. will probably get that tanked, machined flat and add some few HP. Also in the middle of redoing my interior. Getting black carpet, painting panels black and getting a woodgrain dash bezel.