I have milodon drag pan 10 qt 4.75 stroke 4.5 bore 605ci hemi running about 80psi oil pressure. by the end of 1/4 mile at 7000 rpm oil press fluctuates then drops to 15-20 at about the time I let off. and thats all it takes and a couple of rod bearings are out to me it is pumping all the oil out of pan and not returning fast enough wouldnt you say? and since hemis are known for oil return problems that sounds like the key.