700-900 depending on how complete the engine is. I just sold a long block for $750. No carb, distributor, oil pan or timing cover. If you have all the numbers matching accessories then $900 for rebuildable engine is fair.
BTW, I know of someone needing one. PM me if you decide to let her loose.
Also, PM me the VIN. I'd love to find my original block for my 79 Formula. I know it's a long shot but I gotta ask..
David
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My 79 400 4 speed Formula
either get busy living or get busy dying