I think alky injection is the way to go. At least thats the way I'm going.

 

Look into Torco. I've used it for well over a year and 10+ track events and its working out great for me.

check out this thread: https://www.evolutionm.net/forums/sh...83#post1518783

I've also done some (not very scientific) testing of my own with a Gtech Pro Comp accelerometer. I'm flashed for 93 octane. When I run 91 octane, I make 12hp less than my usual mixture of 91+torco.

Take it for what its worth.