Another big Block 1972 Qjet done from my Guy here I Bucks County . These are Great proforming carbs & look just as good as they work . Quality restoration ! These 800s run right next to the Holley 830 Ad carb I use on the dyno on street engines I have built . Within 5-8 number if not better without jetting , depending on the intake & better on cast intake 425 plus the shipping from 18974 Warminster Pa