I have used quite a few of these blocks over the last few years . They are a little cheaper.
https://www.holley.com/products/fuel.../parts/134-155
They have the ribs on the bowl side but have the lower IFR's and also have the two traditional emulsions. They typically had .032 IFR's though , and .055 PVR's . The emulsion's have been spotty usually .028 but the last one I got had .031's .
They also come with short 7/8" snap in vent tubes .
Glenn