Engine dyno day for Chevy LT1 383 stroker

It's been a while since I had a customer engine on the dyno. Jim's water brake has been on the fritz and it has been repaired. All is well with the dyno. Now my Holley 850 carburetor has been sitting on the shelf for (how long?) a long time. Today went pretty well but the carburetor was spitting fuel at low load and low rpm. The longer we ran the engine the better it got but it never totally "fixed" itself at low rpm. Anyway, the full pulls were fun and the carburetor worked perfectly under dyno full pull load.