Kemco Oil out of Utah makes this product. Its an octane booster and lead additive. I have used it for a short while (based on a recommendation from the previous owner) in a true 11.0:1 CR 396 motor and have been pleased so far. The motor runs very well, no pinging, no unusual sounds. Am interested in others experience with this product. I like the fact that I can store this chemical on my shelf in convenient quart bottles and just add it to the tank prior to fill up. I used to mix a leaded 110 octane racing fuel with 91 octane pump gas in order to acheive appropriate octane.
Kemco Oil
Thanks.