
I think 12.0 is considered pretty safe on these cars.(someone correct me if I'm wrong) looking at the chart, it's actually a tad richer than 12.0 throughout most of the pull.
Wally at auto adrenaline down here in Houston. I was pretty careful who I went with, but after seeing several of the 1000+ horsepower cars that have come out of his shop I decided to let him tune it. I was there the whole time and he stopped and showed me exactly what he was doing in between every pull. Even when he would shut it down early he would explain to me what he saw and why he shut it down. He spent around 4 hours working on it. Overall I'm really happy and I believe I have a very safe tune.
He used to work for Richard at strictly performance down here. He ended up opening his own shop a while back. When I first went just to check the Place out, I was impressed with how big and clean and lit up it was. Not to mention that there were two ford GT's in there getting worked on. One of them made like 1200 or something with a twin turbo kit they put on it. They have an 11 and a 12 cobra in there now,one getting a KB and another getting twin turbos. I figured if the shop was successful with big power cars like those, then they could do mine. He tuned a white 12 5.0 the week before mine was done and it made over 680 with a little less boost.