[Fot] AFR vs EGT = brain damage

[Tony Drews]

AFR and EGT in my mind are for different purposes.  The EGT is a 
quick check that I'm not going to send aluminum out the exhaust, and 
when the car runs like crap it, along with my fuel pressure gauge, 
give me something to help diagnose the problem.

Fuel pressure = 0 and EGT's go up and then drop means I forgot to put 
gas in the fuel cell again.  One EGT lower than the other - front 
carb or rear carb problem.  Good fuel pressure and egt's go to zero - 
I just lost spark.  Etc.

I've used the AFR on the dyno to get the carbs right across the 
entire rev range.  Made a ton of difference in power.  Also killed 
the new sensor over the course of the dyno session - it was a 
standard single wire one from the Napa store....  Wasn't terribly expensive.

- Tony