I'm getting a forged, 30 over shortblock installed and upgrading to a 150 shot. Right now I plan on going 11.5:1 but was wondering how high I could go without having to use race gas? This is my daily driver and do not want to have any issues using 93 octane!
If you run flat tops, you'll have an ~11.2:1, which will work great with the spray (it should also give you a good flame travel with the flat tops, which will help make power). Don't go any higher than this if you don't want to dump in some good gas. Too much variances between different pumps to trust 93 octane at that level of compression IMHO.