Yeah, maybe i should stick with the 12:1. Don't want to get into the straight race fuel gig. I understand these Hemis are good on pump gas to 11.5:1, so shouldn't take much race fuel. I'm currently at 12.5:1 in the wedge and only use 4 or 5 gallons race fuel to 15 gallon cell. So, it looks like i'm on my way now with this Hemi project. Thanks guys