compression
Hey Murff, I am not an engine builder, I am just a racer. I have ran alcohol for all of the fifteen years i have been racing. I ran SBC untill the last 2 years,now run a BBC. I have never ran one with less than 12.5/1. Over the years i have found that alcohol seems to like 14/1 or better. I have ran 16/1 in a big small block and 15/1 in the current big block with never a problem. In my opinion alcohol likes to hit hard and makes a lot of torque and you need the compression to do that. I dont know anything about a ford engine but i would not think it matters. This is only an opinion the experts will jump in here and tell you what to do. GOOD LUCK!