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I have oil pressure problem. when the engine is cold I have about 40-45 psi. when it is hot it drops to less than 5 psi at idle, about 5 psi at 2000 rpm and a it increases at higher rpm but not over 45 psi. where am I loosing the pressure? I know it can be the oil pump, but I have changed it...

Just got my SB heads back from the shop. new valves all over. increased to 2.02 intake valves. planed 1mm (about 0.40") my camshaft: Summit Racing Part Number CCA-CL20-225-4 Cam Style Hydraulic flat tappet Basic Operating RPM Range 2,300-6,500 Intake Duration at 050 inch Lift 240...

I putting a comp CL20-225-4 cam 284/296 .507"/.510" lift in a 360. The heads are beeing rebuilt now with milodon 2.02 valves and new 1.60 valves ported and planed 0.40" with that much lift do I have to do anything else or can it just be put in without any modifications?

How do I calculate the pushrod length? Now I have: crane hmv 282-2 cam. Hydraulic lifters rockerarm unknown, probably a bit stronger than stock, but in stampet steel. Pushrods 7,5" (5/16 tube with a little bowl at the ends) stock 1976 heads. stock valves/springs the changes...