Engine noise what is it?

[OneAmongOthers]

Okay so I finally got my new exhaust put on and now I can properly hear the engine. So now what could this noise be? Valve tap? Pinging? or maybe a vacuum leak?
https://www.youtube.com/watch?v=RGlauB6 ... e=youtu.be

[simmobe]

My guess would be a lifter is failing.

[OneAmongOthers]

My guess would be a lifter is failing.

Yeah, I am guessing lifters or valve tap myself. Going to pull the covers off when the rain stops and see what's underneath.

[stove]

Exhaust leak. Likely coming from the choke heat tube flange gasket on the intake manifold.

[OneAmongOthers]

Exhaust leak. Likely coming from the choke heat tube flange gasket on the intake manifold.

It's coming from the thermactor manifold on the back of the head. There is a crack or hole in it. I can put my finger over it and stop the popping noise.

[OneAmongOthers]

I managed to get the piece out and was able to get a plug into the hole and tapped it in with a tiny children's hammer.