octane boosters?

o.k. I did some checks and I was running at 15 degrees initial dropped it to 10 and 34 degrees at 3200 or total. no vacuum advance, 15 inches of vacuum. adjusted carb, idles at 800 rpm just like a kitten.....gonna try that and see what happens. thanks for the help guys, as far as the injection do you have to get a special spray bar or something for carbs....very interesting subject though. A inexpensive mod that will help keep your engine from beating itself up. Why hasn't this mod been used more?