John,
Have a look at the Holley 12-129.
https://www.holley.com/products/fuel...e/parts/12-129
I used the identical pump (but high pressure for fuel injection) in 828. Peter is aware of the minor mods needed to the trunk sheet metal to allow room for the pump to fit in the top of the tank. 255 LPH with a 10.4 amp draw.
Bobby