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 Here the Comp oil pump primer tool (PN 4921) sits to the right of our MSD distributor. It fits in the block in place of the distributor to prime the oil pump with a drill. It’s best to rotate the engine by hand while drilling with the oil pump primer tool. With the solid roller lifters it will take lots of oil pump drilling and hand rotating of the engine for the lube to get up to the rocker arms. The engine needs to be running for the oiling system to work properly because of the design of Comp solid roller lifters.