Carburetors and throttle bodies

Need Holley 4010 List No 0-84012 or 0-84013 carb as shown for parts/rebuild mechanical secondary square bore 600 or 750 Barry Grant DR1000 (Drag Race 1000) out powers any Holley HP or 1050 dominator was best on BBM performer RPM 800.00 or trades for mechanical injection stuff 625 CFM street demon. Vacuum adv spigot broken off, air door adjust lock been over tightened. Fixable trade for Holley 4010 core or best offer 2 LS style DBC 102 mm were to be use as shown but going with a bird catcher 100.00 pair 75mm Professional Products 96-04 Mustang 4.6 50.00 GM GEN 3 3800SC 50.00