100LL with high flow cats?

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100LL or 100 Low Lead is aviation gasoline. It has 2 grams of lead per gallon. I would not do it with cats. I assume you must work at an FBO or know someone that does because it currently runs anywhere from $4-$6 a gallon. :D

No actually I live near a station that has 100LL and 110L and they let u pump 100LL into your car so thats what i did and upped the timing to 14* and ran 8 passes with a consistent 9.80 @72mph (In the 1/8 mile) with a 2.3 60'. and my quickest 9.6 @75mph with a 2.1 60' Everyone was impressed as hell with my car :D
 
I work at an FBO here in CA, and we sump our Avgas trucks every morning, basically "throwing away" 4 gallons per morning between both trucks. I've been very curious about it, as I can just take the sumped "waste" gas and add it to my tank... With no cats, would I run into any problems??