My 69 351W is coming out of the engine rebuild shop next week. The shop is telling me NOT to use a High Volume oil pump. They said it simply is not needed. He even mentioned it may be bad for the engine. My only modifications are .40 over, Comp Extreem cam ( mildest one ) and lifters, and new valves. I am planning on using a high preformance water pump. Edlebrock RPM manifold and 600cfm carb. Wouldn't a high volume oil pump be a good idea?