Leaded gas

Any one use leaded gas in there cars?
I got ahold of some 100LL for my old Z28.
100LL only has 2gm of lead per gallon.
The first time I ran it I mixed it roughly 60% 100LL and 40% cheap gas left in the tank.
The change was very quick.
Now I try to run it 10%-20% 100LL all the time.
My car:
Runs smoother from idel to red line.
Picked up at least 1 city MPG normaly I get 11-13mpg.
Starts up Soooo easy.
runs much quiter on the interstate.
I have never herd of or seen any kind of chemical do this, other then the BS claims on those tv shows.
Any one else try this?
Wonder what the oil test will look like? Lots of lead I bet, a few 100 ppm at least.

Be careful. One full tank of fully leaded race gas and you can kiss your O2s goodbye.

On a positive note, the smell of the exhaust is awesome. Reminds you of being at the track.

Little bit of lead never hurt anybody....

I think you should run straight leaded gas and go get an emissions test done, just to piss those guys off.

lol jerminator96 that'd be hilarious, hopefully they wouldnt try and fine ya though :( i'd look into that, but lead is awesome good cooler, and smells racy

just check sensors and jetting, spark plugs etc. i know that there are some things about lead that might not please exclusively unleaded cars, but you'll notice that 11 and 12 to 1 compression with small cams will produce some nice dyno numbers on lead, and blow up with anything but, so lead is good, but it's like too much ethanol, it's not really made to be in there, and will likely be fine, but you might wanna research it.

EDIT: as in research what the sensors read, the emissions variance... catalytic converter tolerance... jet sizing....the spark plug tolerance (might want old school, 71-72 are lead changeover years 73 is unleaded, so go 60s plugs)