Just moving to 93 octane will give you more power, they sense knock and pull timing accordingly. I hope you have a tuner for that intake and those long tubes as well, because you WILL throw a code for the front o2 sensors with the long tubes, and lean bank 1 and lean bank 2 codes with that intake. Check out
www.americanmuscle.com I work for them doing the custom tuning for the SCT tuners. If you have any questions or anything, feel free to ask or to call work, many knowledgeable people there.