Another carb option is the Holley 1940, it is an inch or so lower than the Rochester BV carbs. The Carter RBS is also a low-profile carb, used on the Ford 250cid for the same reason.
I made a home-made Trips setup for my 292 Nova - the middle and rear carbs fit with a Rochester BV and 2" air cleaner, but the front carb will hit the hood, so I have to use a shorter Holley 1940 and 1" air filter. Those doggone 292's are tall.
