Gump1986
+1y
Im running a MSD 2225 external pump on my 15 gallon cell. My truck has 4.0 in it. The pump is rated at something like 400HP on EFI motors, but it is the smallest pump that MSD sells. It is on Summit for around $85. Just don't get any of the Accel pumps. They look identical to the MSD, but they suck. The cheap little brass studs on their electrical connections are very easy to break and the second one I bought didn't even work out of the box.