I believe itr is LUNATI that builds this kit. I't weakness is the stock 2.3L Turbo rods it uses, would probably hold up to 450 hp though. I will warn you that I did have a capri with two turbo 4 cyl. engines that both had rod bolts walk and punched the rod through the block, apparently the cause of this is usually due to the harmonics of the 4 cyl engine, so it probably wouldn't happen with the 5.0.
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