Go Pontiac 400cu/in, It will be Different and be a piece of Cake,,,,,,,,,
Just 'Cause' a Guy has a Packard Stright Eight (LoL) laying around often does not make economic or rational sense to Just do it just because, but Hey, It only takes funds and desire ,,,,,,,,,,
&
the old adage, "It is his car" the Customer is ALWAYs right when he/she is writing the Checks.