O2 bung brazing/welding?

[Ross Corrigan]

At 01:57 AM 1/14/99 -0500, you wrote:
>I've been successful drilling a hole in the pipe/header large enough
>for the sensor portion of the O2 sensor, and welding an 18mm spark
>plug anti-fouler around the hole.  The anti-fouler needs to be cut
>short enough so the sensor protrudes into the exhaust stream.  If you
>find a source for more "professional" bungs, please post it.
>Shannen

holley has them for ~$5