Search results with tag "Mechanical pump"

500 cid Caddy Engine Swap - gmcws.org

supplement the Caddy mechanical pump. Note: Jim used a Carter #P-4070 electric fuel pump and the original mechanical pump on our GMC. He also has an Auto Meter fuel pressure gage. The electric pump was originally installed between the selector valve and the mechanical pump. However, by using the fuel pressure gage, Jim found that when both

  Pumps, Mechanical, Mechanical pump