This is the Factory Appearing Stock Tires (FAST) class. The rules are simple, you can can not have any visual mods what-so -ever. These cars run stock carbs, intakes, heads, exhaust, tires. The only visual mods you are allowed is to fit nhra rules i.e roll bar/cage etc. These cars are nuts to watch as most of them have huge stroker motors with 4 speeds on stock tires. There is even a rule if your car sounds too radical, you will not be allowed to compete. Here are some of the faster cars:
http://pic30.picturetrail.com/VOL1528/6753164/21946475/362587764.jpg
http://pic30.picturetrail.com/VOL1528/6753164/21946475/362587763.jpg
http://pic30.picturetrail.com/VOL1528/6753164/21946475/362587762.jpg
http://pic30.picturetrail.com/VOL1528/6753164/21946475/362587761.jpg
http://pic30.picturetrail.com/VOL1528/6753164/21946475/362587759.jpg
http://pic30.picturetrail.com/VOL1528/6753164/21946475/362588434.jpg
http://pic30.picturetrail.com/VOL1528/6753164/21946475/362588433.jpg
http://pic30.picturetrail.com/VOL1528/6753164/21946475/362588431.jpg
http://pic30.picturetrail.com/VOL1528/6753164/21946475/362588432.jpg
http://pic30.picturetrail.com/VOL1528/6753164/21946475/362588430.jpg