holley carb tuning

I have just replaced holley 750 vacuum secondaries with 650 DP on my CAV GT40. I want to tune the carb using wiideband 02 sensor but do not want to drill a hole and weld on a bung to one of the headers. Is there a o2 sensing probe which can be pushed up the tailpipe. The muffler in my car is the perforated tube type so I should be able to push the probe up to the collectors.

 

[Randy V]

These folks have a pretty nice little system and they offer a "Clip-On" heated wideband O2 sensor..

Innovate Motorsports Wideband Air/Fuel Ratio Tuning

Innovate Motor Sports On-Line Store