Need help from people running dual quad setups on the great y-block.

I know originally the 57 Ford dual quad setup ran the teapots facing backwards and were run simultaneously. Using the same 57 Ford dual quad manifold with modern Edelbrocks, should they be run simultaneously (with both facing forward) or progressive (with back carb as primary, and both facing forward).

Thanks in advance for any help provided.

Bruce



1956 Ford Victoria Hardtop



Fort Worth, TX