I'll run it out of gas if need be, but I'll run an auxillary source for the test if it is that bad. One thing is I drive these things a lot and running 100 octane all the time would get to even me. I can get 87 octane non-ethanol about 3 miles from the house but not sure it would like a lot of that. I've never nothered with octane booster is it effective? Is there an additive that counteracts the ethanols tendency to boil out there?
Thanks for all the input so far guys and I'll update as I figure stuff out.
Sunoco 100 octane unleaded is loaded with ethanol, loaded, more than 10%, that's how they get the octane so high.
If you do this then get 110 leaded, it's the only fuel worth using for test like this.
Sunoco 260GTX 98 octane is the only unleaded gas with no ethanol. Well now they have optima that is 95 octane with no ethanol.
When I was in Fla I saw non ethanol gas in many places for boats.
I would suggest to block off the heat risers and maybe consider a different intake manifold with no heat riser passages.
