Wut'n'ell is the intake centerline on a P4120231

http://www.monicattichrysler.com/comersus/store/comersus_viewItem.asp?idProduct=255#

http://www.summitracing.com/parts/dcc-4120231

http://flag.blackened.net/mopar/camchart.html

http://www.chicagoconnection.us/index.php?main_page=product_info&products_id=944

https://www.yearone.com/Product/1966-74-A-B-E-Body/P4120231

Shall I keep looking?