You'll be happy with 750 double pumpers. I don't know how necessary it is, but my Quickfuel carbs were custom calibrated for a TR and had wedge shaped floats for a TR with sideways mounted carbs. They were pretty much spot-on right out of the box.
I have had very good luck with custom QF carbs over the years. ALthough, they are under new ownership now correct? I have not bought one since the change, but I would be curious to know. I still use a lot of they're parts over Holley stuff.
