Stock crank will survive more than stock rods.
This is what happend after a while at 20 psi boost on stock shortblock.
Bent rods caused the crank counterweights to hit the pistons under the wrist pin.
The camshaft was broken into 6 pieces.
Several pieces missing from the engine block.
The crank could probably be reconditioned if I wanted to use it again.
Early that summer I went to a local race track.
60 foot - 1.827 s
1/8 mile - 7.245 s, 169.85 km/h ( 105 MPH )
1/4 mile - 10.862 s, 216.38 km/h (134 MPH )
Later the same summer, a few days before the engine exploded, I went to another temporary track with just unprepared tarmac. I had just built a more free flowing exhaust and power increase was substancial.
1/8 mile - 7.094 sek med 170.40 km/h ( 106 MPH )
This is a video of that run 1900 pound 1923 Ford with supercharger.
( Right click, save as )
( Click pictures )