OK i just got my motor back from machine shop, rebuilt and balanced time to put parts all together and paint it before it goes back in my car, now the machine shop did not recommend using Melling high volume oil pump cause they told me it will hurt with the regular oil pan size, this is the current oil pump in it but I want to change it since it may bad and the engine is already open, current one is Melling M84A, would you guys recommend using same on or go with something else, 351C with 4V closed chamber heads.