Not Ranked
If I were building a FE from scratch, without even a block, I think I'd check w/Gessford, Keith Craft or Barry (Survival Motorsports) and get a 428 service block. It has the same ribbing/reinforcement as the CJ/SCJ blocks at a fraction of the cost. The 428 is "factory correct" for a large portion of the 66' Cobras. The 390s were never "factory".
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