Posting for a friend, he had a built Dart block 4.125 stroke w/ Callies Dragonslayer crank/rods. 350hp NOS hit w/ ported stock LSA blower. Fresh motor, almost no time on it. Broke a Callies rod right in the middle. Will try to get pics. Thoughts? He didn't think he detonated it, but not 100% on that. Piston looked ok, but had damage from coming apart. My first thought is defect in the rod. Came apart right in the middle. Is there a better power adder rod out that's not insane $$$? 1500hp build, 7000rpm max.