Mechanical fuel pumps

C&S carbs make a mech pump thats a 6 valve pump with 1/2 NPT for true large fittings thats flows about 130gpm, chevy guys got it ez with the same pump for about 100$, i had a friend who took the chevy 130gpm 6 valve pump and some how either swaped the lever from a mopar to the chevy or he welded the mopar lever to the chevy pump and it worked great and this was on a circle track car on alcohal