My take on the oiling system crossover tube for the small block

mopardude318 said

At the time I had a 90* oil filter adapter, which has a take off port there as well. That is the 2 locations which were used.

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So there is a 10 psi drop after the filter? Your line pressure is actually dropping as the rpm got higher which is not good. 37psi at 5,000 rpm is not good.imho