What plugs should I run with a supercharger I hear people talk about autolight 3924 but when I went to autozone the told me autolight 24 of course one heat range colder

question is what ones are for me??? The 3924 are twice the threads and have a crush washer

Any help would be great I have factory heads

 

Autolite 24
http://www.autozone.com/autozone/cat...&parentId=42-0

 

THanks

 

if heads are of an oem cast then 24's if they are e7's or regular gt-40's