there is no break in on race engines . the rings seat in the walls and you are ready. and i hope your are useing a cross drilled crank and 3/4 groove main bearings i use the federal moguls and the rod may be moveing and the main caps and the crank is flexing i would bet on it at 8500,thats why you need move clearance on every thing and run the small end pin boss to 0001 at least i not a big fan of the lunati rods great for lower rpm the crower is better they have the clover pattern on the big end of the rod puts more steel where you need it and you should be using L19 bolts or 2000 or better your mass is to heavy for the rod to keep on the crank. and this WORKS ON THE BOLTS AND THATS why YOUR RODS LOOK like predzels and try to turn up the oil psi this will not hurt