Slant 6 Turbo 68Dart Project

It looks like the cost would well outweigh what I want to do. I am looking back at the Holley 2 barrel. There's a metering block made for it that doesn't use jets, but an adjustable screw to balance between 60 and 80. I think it would be a wise purchase if I can't make up my mind on the carb, and the plate is only $65 from summit, and I might be able to find a Holley 2300 somewhere for cheap...