We run wieght to cubic inch with power adder points to determin classes. Ive beena rules man for the East Coast 4 Wheel Drive Association for decades. I get to see what really works or jus works. We should run the flat drags, 300 feet, 100 yards, in mid 3 second range at 105mph. the fun part is it's on sand or pea gravel. Done the NHRA thing, love the sand. Sory for the hi-jack.