[racinjason2316]

I'd think of converting to EFI for best results with the blower. An EEC-IV system can keep the engine much closer to the edge than a carburetor can without emeinent engine damage due to environmental changes. Go with a thicker head gasket to loose a little compression, and you can also have a little materiel removed from the combustion chambers. If you can get it down to ~9.5:1 C/R then 8-9 PSI shouldn't be a problem with around 18* of timing. Those will be good baseline . If you have a boost retard device, add 10 degrees to the total timing and subtract 1 degree per PSI. That is a good starting point for the carb or EFI tuneup. Tune it on the dyno either way and keep good fuel in it. Also, you can mix a gallon of tolulene and a gallon of Xylene with your pump gas as an extra margin of safety. Sounds like a pain, but if it's not a daily driver it might be worth it for an extra 200 horsepower. If you mix 30% by volume, you can realize 100 octane unleaded gas for a fraction of what commercial VP/Trick race fuels cost. ANother solution would be methanol/water injection. That will make your engine think that pump gas is really 100+ effective octane with the methanol serving as an additional fuel source and charge cooling media and the water serving to cool the hot parts involved in the combustion event.