1972 Dart Swinger Header

I recently purchased a 1972 Dart Swinger with a 318, one of the previous owners seemed to be interested in performance, but I am more interested in a Cruiser/ Road Trip vehicle. The issues are that the car currently has long tube Hooker headers and an 8 Quart Milodon oil pan. Bothe of these are causing clearance issues as they both hang about 3” from the ground. I plan on installing a stock oil pan to eliminate the oil pan clearance problem.

My question is on the headers, based on receipts that came with the car it has a COMP Cams Camshaft with a Duration 268/280 and Lift .477/.480. I know I will lose some Mid and High range performance going to a hugger style headed, but will there be any other problems.

Also does anyone have a suggestion for a Hugger style header for this car.

Thanks

Mike