I agree with Johnny O. I've been running 100 low lead avgas in my 327 with 11.5 compression pistons. I still have the original camel hump 2.02 heads with stainless valves. Smaller airports are about the only place you could probably get it. Just talk to the fixed base operator. I get it in two 75 gallon diesel truck tanks that I rigged with a rack that fits in the back of my pickup and slides into a rack to hold it in my shop. Of course it is properly vented out side. Welding sparks would really make your day.