Quote:

I just started running EFI.. but I MIGHT have to make
a fuel table just for racing... in open loop its
trying to drive the A/F to stoichiometric all the time
and in a max power condition you want somewhere in
the 12.5 range... so just for racing I might have to
with a fuel table... it can be way more consistent
if you stay in open loop and let the O2 do the work..
I'll tell you come spring time which way I go on
the loop thing



It's closed loop that has the O2 sensor making corrections, not open loop. You could richen up your base fuel map to run richer like you want while racing and change to open loop when at the track so there is no O2 correction. Then you can tunr the Cloosed loop back on for driving around on the street. Or if you want, change the closed loop map to whatever AFR you want and have it run a richer mix during racing. I assume you EFI has a wide band O2 sensor? If not you won't be able to program for richer than stoic AFRs and you will have to do the first option.