good octane booster?

You could also use Xylene... It's found in the paint section of your local home depot or lowes. Also any Sherwin Williams and it's been used in the street racing scene around here for years.

It's 116 to 117 octane by itself so if you do a 1gal (93 octane gas) to 1gal (of xylene) you'll get 104.5 octane (93+116=209 divided by 2 = 104.5)

or you could do :

10 gallons of 93 (10x93=930)
3.5 gallons of xylene (3.5x117=409.5)
930+409.5=1339.5 divided by 13.5 gallon blend total = 99.22 octane

Have had great luck with it in grand nationals, syclones and typhoons before alky injection kits became affordable. I personally used to add a little marval mystery to the mix just for piece of mind but it's said to be not needed.

Just be careful when mixing it because if you get it anywhere on your paint your screwed. treat it as a toxic substance when mixing don't just dump it in because you don't want no splashing

What we did was use a transmission funnel to pour it in the tank. Pour with the spout positioned at the TOP of the pail or container so that you don't get the "gulp" effect when pouring. This method greatly limits any splashing or spillage.