RPM Airgap vs. non-Airgap?

That isn't all that's different in Vegas, I recal back in the mid 70's thru early 80's (the time I lived out there) that you had to pay for your gas FIRST, and then you pumped it. Here in N.D. where I live now, you can pump your gas and then go in and pay for it. Definatley 2 different worlds. Vegas is a nice place to visit, but I wouldn't ever want to live there again.

In response to what do I do about low octane fuels, I have 8-8.5 to one compression, I can run varnish if I want, LOL. But seriously, you could go to the airport (maybe) with gas cans in hand and buy AV gas claiming you have an ultra light or some other form of small aircraft (although I think this is MUCH harder to get away with nowadays, or seek out the nearest race facility that sells race gas (look into places involved in Baja racing as they run higher compression engines and are refered to as off-road vehicles and they are allowed to use higher octane fuels not to mention costs a little less because you don't pay road tax for the fuel, but if you get caught driving on the street with these fuels in tank you can get fined heavily. Otherwise I do believe your S.O.L. because I haven't found anything in an additive that really makes up for $h!tty gas.