Holley running rich at part throttle cruise

Just an update, comverted the metering blocks on the old 750hp to adjustable power valve channel restrictors and adjustable idle feed restrictors.

Dropped the ifr size from 35 thou to 31 thou and it now cruises on the transition slots at 12.8 to 12.9.

Increased the pvcr size from 61 thou to 67 thou and my wot afr is around 12.9 to 13.0 so i might go up one or two thou more.

Really happy with the leaner main jet and leaner transition circuit, cruises so much better and more responsive,will keep improving it.