[Commander]

It's nice we're comparing things to F1 and top fuel yadda yadda yadda, but folks seem to be losing track of just what is being promised here: a block that's good to 700-800 HP for $5,000+. A block that LOOKS like it could compete in F1 or go in a 3000HP rail, but actually, can't.

There are already blocks out there that are good to 1,500++ HP for $5,000 (and less). That LOOK like original C5 blocks. That have been tested and proven over literally 100's of thousands, millions even, miles.

Personally, the math doesn't work for me.
Personally, if 30 pounds was a critical amount of weight to me, racing, I'd lose it personally. I'd spend the $5K on massage therapists and herbal wraps, maybe some personal trainer time.
Personally, I'd rather buy the cow than take a bath in milk.
Personally, I think by the time I developed any confidence in this block and was willing to buy it, Ford itself will have come out with the new 6.2L Boss engine, with DOHC, efi, di, vvt...that'll have service bulletins, factory support and with some aftermarket work, displace 7 liters, produce just as much power as this block will be rated for and will look about as much like an original sideoiler block as this one will.

Personal opinions, we all have them, these are mine.