273 Adjustable Rockers/90 Degree Adapters/18" Clutch fans

Hey Jake,
What are the Oil filter adapters for??
I mean, why would someone need one?
I have a set of 1970 factory HP exhaust manifolds for my 70 Cuda,is that something I would need for the oil filter to clear the exhaust??
They provide more clearance and reposition the filter to face towards to rear or the car. They were used in many different applications. I'm pretty sure they were used on your car.

Jake