Quadrajet-Can't get idle tube out

[89SS196]

I am attempting to pull my idle tubes and I have ruined the collar on the first one.  Drove it down 1/8" and attempted to remove the assembly with a de-tipped drywall screw as seen in Cliff's Q jet book.
After it failed I heated & retried, then did another heat & try with a second screw.  The upper 1/16 inch of the collar has pulled out. What would you say to do?
I am about to get some little easy outs unless you have a better method.
Help a guy out with an idea.

[89SS196]

Nevermind, took another try with a smaller deck screw.  Voila.  Out!

[Cliff Ruggles]

Good news.  Some can be stubborn.  Heating the casting and good engagement in the collar is the key to getting them out easily.....Cliff