I'm considering installing a set of Flowtech ceramic coated headers on my 77 vette. I've put headers on a car in the past & it was a real pain.

I put headers on my black 79 years ago and it was pretty easy. Had the car just up on jack stands. No crossmember to deal with like you'd find on Chevelles, Novas or Camaros. Pulled the plugs, starter, smog stuff, A/C brackets and of course the manifolds. Mine slipped right in from below. They make spark plug changing a 15 minute job!.

That's great news.

Ditto!! And those are the headers I have

I have have the Flowtech ceramic coated headers on mine also. I don't know if your car is a 4 spd or auto. If it is a 4 spd., the hardest thing about the job is that you'll have to remove the z-bar for the clutch linkage to get 'em in place. Other than that, it's not that bad of a job to do.   Also...I do recommend not even bothering with the supplied gaskets they give you and spend the extra $ on copper gaskets.

Mine's an auto. Thanks for the gasket tip.

I bought the Hedman ceramics for my ZZ4 swap, anyone use them before?

I also have the Flowmaster Ceramic headers.  Watch my article in the June Corvette Enthusist Magazine and you can see photos of the install.  I did it on drive on ramps.  The work is bending the pipes and connection them to the header collectors.