Help!!!!!

maz72 said

Aviation fuel in a car may not be a good choice due to its slow burn rate. Due a little research on it before mixing this. I use VP 110 for the lead content as well as the octane boost and have had zero issues. I never used aviation fuel but have read about it not being suitable for cars in numerous other sights.

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Straight-up, yes. 4X the lead will eventually cause valve sticking (it does in aircraft engines, which is why they run larger stem-to-guide clearances and use sodium-filled 1/2" diameter valve stems). But research shows to to get a higher anti-knock number on unleaded pemium, the gas has to be re-refined ('cracked') over and over until the higher rating is obtained, rather than adding tetraethyl lead as they did back in the day. Adding ANY leaded fuel to this highly cracked gasoline raises the anti-knock index at a much higher ratio due to the higher refined state. 100LL has 4X the lead of your typical 102 octane (Sun 260) type performance gasoline of the sixties and seventies. This would not be running a diet of straight avgas, it would be a 15:1 blend which would probably add enough lead to make your 92 octane pump gas the equivalent of leaded premium. Well, that's my plan, anyway......probably wouldn't know until the 'Ping-O-Meter' alarm bells go off..:munky2: