4. Blackwater and 5. Blackwater - Sounds like the Q Jet is a good option for me.
7. 7integrated j 78 - The 283 SB Chevy would take more CFM than the 302. It has better volumetric efficiency with 1 intake and exhaust port per cyl and the top rpm is at least 500 rpm higher. 400 CFM is about right for the GMC.
10. Duce Coupe - I have is a factory rebuilt Holley 8007 for six cylinder applications. It is has smaller bores and venturi than the 4610 600 CFM carb with vacuum secondary. I wired the secondary barrels shut but it still dies between idle and about 1200 rpm.
