Headers Dougs vs direction manuel.

pishta said
65 A engine offset only 5/8 inches to passenger side? The crank cl from frame rails difference is 1 1/4 ..hmmm..have to check that out.

You probably already know this but I'll add it for an FYI; all Mopars have offset drivelines. It makes room for the steering gear and shifter mechanisms whilst also aligning the drive train with the rear end pinion.