Ill tackle loren's question first since its right up my alley. The only problem with running lower octane is you would have a tendency to detonate, so you can do a couple of things. First you could get a a J & G Safeguard system which would let you run on the ragged edge of timing safely because if it senses any knocking itll yank the timing back to prevent damage, or you could get the water injection system that JR has available. The water injection system injects a mist of water into the intake manifold and therefore cools the intake air down considerably you would have to refill the water bottle at every fill up but oh well. Yeah the MSD DIS Ignition would be a good investment as it does retard timing as boost goes up but unlike the J % G safeguard it cannot sense detonation before it happens.