Smog removal from drivers side head

[Jesus5150]

I have a 1971 3986336 engine that's all original from a chevy van. I want to clean it up and drop it in the c10. I ditched the carb and intake because I have a holley 4160 and torker 2 intake lying around and they're fresh.

I took the stock intake off and there's 2 steel tubes in one of the small ports of my drivers side head. What are they and how do I remove them without damage?

[geezer#99]

They’re the tubes for the hot air choke on your carb.
Over time they get stuck in the exhaust crossover by a build up of carbon.
You likely need to dig them out of there. Nothing else in there to hurt.

[Jesus5150]

Wow. That's shocking. They look and feel "mounted". Thanks a lot. I'm going to move forward!

[kwmech]

Yep, there supposed to be attached to the metal plate that bolts to the intake from the outside. Small chisel an hammer, start chipping away 'til they come loose. Other side looks just as clogged up