The video demontrates how close he's holding his idle against the 1,175 rpm target. This is achieved at a super low and stable MaP signal of 50 kPa while feeding Monty a 13.8:1 AFR and lighting the fire surprisingly early at 25° of crankshaft rotation before top dead centre. The small timing fluctuations you see around the 25° BTDC ignition idle target are the ECU's dynamic timing based idle management doing its thing perfectly.
Freeze frame this video anywhere and you'll see typically Stage 3 Monty is only ever roughly 20 rpm either side of the 1,175 rpm target. This all took a lot of work to get right, but I feel I've nailed it now
