Ok today I noticed that when I gear down and let the car roll to a stop the a/f says 21.0 as soon as the car is at a stop or I tap the gas it goes to 14.5 and below that. Is this normal?

 

With the Zeitronix, YES! Under normal conditions, it will probably stay somewhere between 21.0 and 14.5 It is going to be doing a lot of bouncing. After you get AF adjusted with the R4 and get into WOT, then you will see it dip into the 12's, 11's and perhaps high 10's. But those high 10's, while rich, you want to try and eliminate.

 

Cool, When Im at WOT Im at about 10.9 Funny part was before I installed the cats the car was running sooo fuggin rich it was foulin plugs. Now Im all good. I think my air/fuel is good. Thinking about skipping the dyno tune.

 

the same thing happens to me with the Zeitronix. I am glad that's normal. Thanks for the info.