Well I made the mistake of putting a Wide band o2 gauge on my 392 Challenger, at WOT its in the 11.6 afr range, now that I know this its driving me NUTS LOL, car runs great for being all stock 11.79@ 114.5 with drag radials, time for getting the stuff to do a tune on it GRRRR , looks like HP tuners is the best option.

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5