O2 # with alky ?

[Lee Thompson]

Can some one who has been running alky for a while, tell me about 02 readings?
With 116 my car would run clean with 02 # 820 min.
Add alky with .040 nozzle--02# 650
Add more alky 02# 200
All of this is with 0 detonation.
Does more alky reduce 02 # ?
This is with a new 02 sensor
The sensor cycles (at idle and part throttle) 110-780
I have to assume the sensor is good. Thanks

 

[YGETV8]

All I can tell you is that my GN O2 readings with an OTC 2000 stay about the same whether I'm on alky, Xylene, or 112 race gas!? I am using 70% Isopropyl and the car likes to run about mid/upper .800s either way! I have two NOS nozzles jetted for a total of about .045". It has #30 lb. green stripes, if that makes a diff. This is from looking back to my notes on time slips as I have run the GN four times at the track. Twice with Xylene added, once with race gas, and once with alky. Best mph with race gas and then alky are in my sig., BTW.

Any help, or just more confusing?!