Question... on this 50 special deluxe, Any problem swapping the dual action fuel pump for a single?  Anyone know if the pump arm is the same? I won't be needing the vacuum assistance, I have 47 Chrysler electric wiper set on the way.   I've been working on this with a friend in weekends. I've got a lot of info lurking here. Thank you all!   So far she's had done; Replace entire brake system sans master cylinder (Vette type on the way)   Split fuel tan