Went to a track rental. As usual I couldn't get the stuff that I wanted to do done like leaning it out (was 10.4afr), lashing valves, plugs, and reset timing. Anyway, this was leaving off 4.5-5psi with 5° of timing pulled and ramping to 14psi. I made a mistake and had my timing 4° down from where I wanted it. I think it would have ran a 5.6x or better leaner with a couple degrees more timing. Idk. Not hateful for a little over 3,800lbs.
https://youtu.be/jEZde6Ni4mc
https://youtu.be/L9thWMSdl58