20 psi last run. My 60 was a little worse on the 2nd run, but i picked up a tenth inthe quarter and 1/2 mph.. Hitting the limiter right as i cross the stripe. No flat spotting from 4,500-5,500 rpm anymore that i can tell.. Woot woot
Your on a DR right? Id lower them a couple lbs 17-18 psi try that, if you still spin try 15-17 psi. You can go as low as 12 psi on an ET street if that is what you have.