Toluene for octane

An alternative to blowing up your garage would be low lead aviation fuel (Avgas). 100LL which is 100 octane.
It can be purchased for around $5.50 per gallon. There are lots of little airports all over this nation that will sell to you just do a search and you probably have one within 20 miles of you.

100LL (100 low lead) contains about 4 times the TEL than what was in leaded automotive grade. May have an issue with lead deposits but if your jetted right then probably not so bad.

Runs real good in high compression engines between 10.5 to 12.0. I mix it 50/50 with 92 octane gas to keep the cost down to around $4.00/gallon. The reason for using it is to minimize engine knock which occurs if I run straight 92.

Been using it for 5 years and my motor loves it. Plugs always looks perfect and it runs like a champ at low or high RPM in cold weather or hot.