89 TTA, stock engine with new chain springs and all seals, PT-52 running 25 psi with E85, ecu-GN, zero knock, plugs looked safe, 78k miles, Husek trans, ran 7.70's at 92 in the 1/8th. My crank more or less had a clean break in between #1 and #2 rods with no warning. The rods were still on the...