On the Dyno, My Crate Motor 302/270 liked the Victor JR w/ a 1" spacer. and Although the 750 made a touch more peak HP, a smaller carb made better average TQ and HP throughout the range
Here is a fun 331 built at the local racing engine shop. With the exception of the AFR's , a budget build, stock unfilled block, Cast scat crank , scat rods etc.. Victor JR, and Dave insisted on the Demon carb..
Enjoy,
https://www.youtube.com/channel/UC69...revJlEXyJH9k9w