Since MS109 is 13.41 stoich, do I shoot for .88 lambda which is 11.8 AFR or .81 lambda which is 10.9 afr on a boosted application. Using 93 octane, I tune for .81 lambda which is 11.5 afr. This makes my head spin. i have the stoich table set at 13.41. Just need to get the PE and boost PE correct at wot.
Thanks

 

I found some more info. Use 13.4 for stoich and target.81 lambda because it takes more fuel for ms109 than 93---just like E85. Except it takes even more fuel for E85. I was looking for something like E85 because I was out of injector with 85. Can't make as much power with 109 ,but it is close ,and saves me a grand for new injectors. 20 bucks a gallon--UGH