Drag Radial Tire pressure????

I run mine at 15psi, but just like spark plugs, you can read your tire marks to determine how much pressure is ideal for your setup. Over & under inflated tires will make a distinct pattern on both prepped tracks and the street. I keep a notebook with track temps, tire pressures, and my caltrac settings. Gives me a reference point for when I'm working off a hangover from the night before

I've also noticed that shorter burnouts work better with MT D/R tires. Mine were slick as snot if I super heated them coming out of the box