Have a 324 with Delta Cams reground cam, push rods and chevy lifters supplied by Delta. I used the crank, rods, oil pump and heads from my running 303. It had good oil pressure and run good. When I initially tried to start it there was no compression. Found that the pushrods were too long so replaced them with the right length rods. Started it and ran it about two minutes but sounded like the lifters were all collapsed and shut it off. Made a shaft, turned the oil pump with a drill and had good oil pressure. I don't want to do the 20 minute cam break in with the lifter issue. Any ideas out there. Might be a good one for Ross Racing or Frank Graff an Olds guy.