Fred -
Don't mean to jump in front of Tim's answer to your question --
The Fuel & Vacuum Pump was factory installed. 1954 RPO #340, $8.50 list price. Factory Assembly Manual instructions Section 0, Sheet 18.00
Of course it could be installed by the dealer, too.
'29-'54 MPC: "52-54 ALL (2nd design) .... fuel and vacuum, dbl. action (AC-9797 .... 5592675 .... $14.65"
The second design had in-out ports for fuel line that were angled 20deg to the block in order to clear the side mounted motor mounts that were used on passenger cars starting in 1952.
I searched through the MPC and FAM, but couldn't find reference to the size of the lines.
