Here is a very good article on Holley carb tuning w/ a wide band O2 sensor.
http://www.innovatemotorsports.com/r...s/Stan1.php#t1
We have the Powerdex AFX Air Fuel Monitor and it is very good.
http://www.ngksparkplugs.com/product...000&country=US
Anybody ever use the Innovative Motorsports LM-1? The data logging feature looks very handy.
http://www.innovatemotorsports.com/products/lm1.php