engine noise..

so, I got my car to start after it was stolen, had to put in a "new" column. 'fore checking it, I checked all the fluids just to be sure. so I did and I hear a loud ticking sound, it's goes with the RPM, around the intake, maybe buttom. hard to tell though, so anyway, I checked, since a day before it got stolen, I installed my headers, checked if it's leaking, nah.. so now I'm taking off my intake and all to check rockers, valves, springs, pushrods, lifters, etc.. I just need pointers of what to look for, anybody, please, thanks in advance!:SNSign: :SNSign: :SNSign: :SNSign: :SNSign: :SNSign:
 
I'd still personally be leaning toward an exhaust leak if you just did headers. You could still have a leak, even though all the header bolts are tight. I replaced the crappy paper gaskets I got with a set of headers, and went with a quality Fel-Pro gasket, and never had an issue again.