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.

It's the math... 2 * 5/8" = 10/8 or 1 1/4"

take 20" between rails and a 5/8" offset. One measurement is 9 3/8", the other is 10 5/8"... 1 1/4" difference in the tape.