Purple Shaft or NOT?

Mp cams were not redesigned with anything more than idle quality and it was only a few part numbers. And my point is if they cant get the intake centerline of one lobe within 8° of where THEY spec, it screams to me problems. They do make power, but there'sa lot better out there. The bs about "designed for Mopar lifters" is media hype from hughes engines. Ultradyne had fast rates of lift for everyone back in the 70s, but for any application with a lot of idle time, that ultra fast rates that the larger lifter give can't be safely used. Which is why the XE lobes and Lunati's lobes are closer to the "max rate" for the Ford lifter, which is .875 vs .825 for chevys. It should also be noted that the fast rate .825 lobes are faster by several degrees throughout the lift range than the MP stuff.