I recently purchased a 1971 Jeep CJ5 with the Dauntless V6. It ran when i got it but very, very rough. I changed the spark plugs, and did an oil change to cover my bases. When i run the engine it will sit there and idle but no oil it getting up to the valve covers, push rods, rocker arms etc. The gauge in the dash was reading 40psi, to make sure i was getting this pressure i plumbed up a new oil gauge and it read 40psi as well. I pulled a few of the lifters and primed the pump manually with a drill through the distributor hole. Oil runs into the lifter valley through the proper channels...