Ticking Sound From Engine

I incorporated some sea foam with my last oil change. since then i have noticed a ticking noise coming from engine. thinking it may be the gunk that was muffling the noise got washed off by the sea foam. do i need to check the valves? also oil pan has started a very slow drip since the sea foam. thinking that's due to the gunk that was holding that gasket together has been cleaned out by the sea foam too. gonna change gasket with next oil change. no biggie, more concerned with strange sound. anyone come accross ticking sound before? if so what to do?

 

when does it tick? at idle, in neutral and higher rpms, under load, acceleration???... valve tick? manifold leak?

 

Ticks all the time when running. Possible it's the manifold.

 

Thats the injectors, it's normal