Spark Plug readings with new gas?????????

[FoMoCo]

Can anybody get a good Spark plug reading using Ca. Gas? I was told by MPD that it was not possible. So I was thinking of gettin a little AV Gas to do the final tuning in the carbs?? Whatcha Think?

[058]

If that were true then the guys running alcohol would be lost. Read plugs like you would on an alcohol engine, check the heat tracks [discoloration] on the plug threads, usually 2 to 3 threads. Check the heat bluing on the ground electrode and always check for signs of detonation on the porcelin [sp]

[Oldsquirt]

Hey FoMoCo, Racing Ray had a good post on this subject here: http://free.***boat.net/ubb/Forum4/HTML/001953.html
It's about 1/2 way down on the first page.

[77charger]

same godamn thing im going thru pipes are black from previous runs plugs are white(ca.gas)av gas will give you a gray color thats what i usually run but have trouble getting it here.(wont sell at the local airport so i have to sneak in and not really good times to do so anymORE)Try getting a few gallons of leaded race fuel and go from there that is my next step will be pricey but less than a new motor.BTW fomoco i got my valve train squared away and all is goo thanks.I WIL HAVE TO MAKE A TRIP UP THERE THIS YEAR.