Heads and cam is not in yet, hard to find time with the kids being sick and family coming in town. It was 45 degrees when I ran, and I couldn't really take advantage of the air since I was running on street tires. Normally I would launch off the E-brake, so that when I stage the throttle is at 100%. I had to leave off idle, so I am guessing their is a low 13.8 or 13.7 in it. And yes I have proof Allen, time slip and witnesses The Heads are just some stock valve stage I heads and a 218 cam. Should make alot of torque, especially since I am still running stock exhaust (sleeper effect).